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D
Asm. Karen McMahon
District 146
Democrat
First elected 2019
Karen McMahon represents AD-146, a D+15 district in which she won her 2024 general election with 60.0% of the vote against Deborah L. Kilbourn, a 20.0-point margin that reflects steady electoral consolidation since her competitive 6.6-point first win in 2018; the district rates Safe D across all 2026 modeled environments, including a Favorable R scenario where the base shifts to Likely D. The district is majority-white (77.7%) with a 57.3% bachelor's degree attainment rate, a median household income of $93,483, and a 69.9% homeownership rate, with voter registration running 42.2% Democrat and 27.4% Republican. In the 2025 session McMahon sponsored 63 bills, with her highest concentrations in Public Health (5 bills), Education (4 bills), and Highway (3 bills), alongside smaller clusters in Family Court Act, Mental Hygiene, Public Authorities, Public Officers, and Tax law (2 bills each).AI
Vulnerability Index AD-146
Base lean: D+18
Favorable D
Neutral
Favorable R
Scenario model: ±5pt national environment shift applied to district base lean (D+18). Base lean blends voter registration (40%) with recent contested general election margins (60%), using up to the last 4 general elections with margins under 40 points. Ratings: Safe D/R = 15+ pts, Likely = 8–14 pts, Lean = 3–7 pts, Toss-up = within 2 pts. Generic ballot from Silver Bulletin (Nate Silver), as of 5/1/2026. Not a prediction — reflects structural competitiveness under different cycle environments.
Electoral History AD-146
General Elections
| Year | Winner | Runner-up | Margin |
|---|---|---|---|
| 2024 | Karen M. McMahon 60.0% (37,370) | Deborah L. Kilbourn 40.0% (24,881) | 20.0pts |
| 2022 | Karen M. McMahon 58.1% (28,443) | Katrina A. Zeplowitz 41.9% (20,518) | 16.2pts |
| 2020 | Karen M. McMahon 55.2% (38,091) | Robin L. Wolfgang 43.7% (30,147) | 11.5pts |
| 2018 | Karen M. McMahon 53.0% (27,616) | Raymond W. Walter 46.4% (24,160) | ⚡ 6.6pts |
| 2016 | Raymond W. Walter 51.2% (30,560) | Steven G. Meyer 48.8% (29,146) | ⚡ 2.4pts |
| 2014 | Raymond W. Walter 58.7% (20,852) | Steven G. Meyer 41.3% (14,641) | 17.4pts |
| 2012 | Raymond W. Walter 54.2% (30,393) | Joanne A. Schultz 45.8% (25,711) | ⚡ 8.4pts |
| 2010 | Kevin S. Smardz 53.0% (23,006) | Brad M. Rybczynski 41.3% (17,939) | 11.7pts |
| 2008 | Jack Quinn 72.9% (40,848) | Leonard F. Kowalski 27.1% (15,148) | 45.8pts |
| 2006 | Jack Quinn 66.9% (27,174) | Maximillian G. Tresmond 33.1% (13,469) | 33.8pts |
| 2004 | Jack Quinn 52.6% (31,595) | Francis J. Pordum 36.0% (21,601) | 16.6pts |
| 2002 | Richard A. Smith 62.9% (23,726) | Bradley L. Nagel 37.1% (14,004) | 25.8pts |
| 2000 | Richard A. Smith 65.2% (29,805) | Eileen A. Hotho 33.8% (15,434) | 31.4pts |
| 1998 | Richard А. Smith 62.3% (23,163) | Stasia T. Vogel 37.7% (13,998) | 24.6pts |
| 1996 | Richard A. Smith 62.3% (28,125) | Michael K. Mosey 37.7% (16,995) | 24.6pts |
Primary Elections
| Year | Winner | Runner-up | Margin |
|---|---|---|---|
| 2020 (Independence) | Robin L. Wolfgang 69.0% (439) | Jonathan A. Lavell 31.0% (197) | 38.0pts |
| 2016 (Conservative) | Raymond W. Walter 69.8% (162) | Douglas B. Lippert 30.2% (70) | 39.6pts |
| 2016 (Independence) | Raymond W. Walter 62.0% (147) | Rachel L. Obenauer 38.0% (90) | 24.0pts |
| 2016 (Working Families) | Steven G. Meyer 81.0% (34) | William P. Kracker 19.0% (8) | 62.0pts |
| 2016 (Reform) | Raymond W. Walter 91.7% (11) | Steven Meyer 8.3% (1) | 83.4pts |
| 2016 (Green) | Steven G. Meyer 52.9% (9) | Dorothy Sobczyk 47.1% (8) | ⚡ 5.8pts |
| 2014 (Democratic) | Steven G. Meyer 70.3% (2,929) | Ken Smith 29.7% (1,236) | 40.6pts |
| 2014 (Independence) | Raymond W. Walter 72.7% (202) | Steven G. Meyer 25.9% (72) | 46.8pts |
| 2012 (Independence) | Raymond W. Walter 52.6% (123) | Joanne A. Schultz 47.4% (111) | ⚡ 5.2pts |
Source: NYS Board of Elections certified results. ⚡ = margin under 10 pts. District history reflects 2022 redistricted boundaries.
Voter Registration
District 146 Profile
Population
130,546
Median income
$93,483
Median rent
$1,393
Homeownership
69.9%
Education (BA+)
57.3%
Poverty rate
10.1%
Uninsured rate
2.0%
Unemployment rate
3.3%
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates (2024).
Demographics
White
77.7%
Black
5.4%
Hispanic
4.7%
Asian
9.5%
Median age
39.1
Foreign born
12.5%
Limited English households
2.9%
Veterans
4.7%
Disability rate
10.6%
Commute Mode
Drive alone
73.8%
Public transit
1.0%
Source: U.S. Census Bureau, ACS 5-Year Estimates (2024). Race and ethnicity figures may not sum to 100% — Hispanic/Latino is an ethnicity category that overlaps with racial groups.
Legislative Activity (2025–2026)
Bills sponsored
63
Floor debate appearances
19
Years in office
7
Bill sponsorship from NYS Open Legislation API. Joint hearing appearances from NYS Senate hearing transcripts.
Floor Session Activity 2025–2026
A07683
PASSED
2026-03-09
An act to amend the Executive Law, in relation to limiting recordkeeping and reporting duties of public notaries
A10201
PASSED
2026-03-04
An act to amend the Village Law, in relation to exempting the Village of Williamsville Fire Department from the requirement that the percentage of non-resident fire department members not exceed 45 percent of its membership
A08300
PASSED
2025-06-16
An act to amend the Surrogate's Court Procedure Act, in relation to the computation and allocation of the commissions of trustees of charitable trusts; and to repeal certain provisions of such law relating thereto
A04030-A
PASSED
2025-06-09
Authorizing the discontinuance of certain parklands
A04030-A
PASSED
2025-06-09
Authorize the discontinuance of certain parklands
A7683
PASSED
2025-04-28
An act to amend the Executive Law, in relation to limiting recordkeeping and reporting duties of public notaries
A00544-A
LAID ASIDE
2025-03-17
Amending the Criminal Procedure Law in relation to requiring police officers to take temporary custody of firearms when responding to reports of family violence
A02321
PASSED
2025-03-17
Amending the Public Officers Law in relation to requiring agencies to report information about FOIL inquiries to the Committee on Open Government
A01674
PASSED
2025-01-28
An act to amend the Public Health Law, in relation to Down Syndrome diagnosis awareness
A09478-A
PASSED
2024-06-10
An act to amend the State Administrative Procedure Act and the Civil Practice Law and Rules, in relation to use of an affirmation of truth of statement in an administrative proceeding
The Assembly passed A09478-A, sponsored by Asm. McMahon, expanding the use of affirmations under penalty of perjury in administrative proceedings under the State Administrative Procedure Act. The bill eliminates the requirement for notarization in administrative hearings, allowing any person to make affirmations rather than limiting them to licensed professionals. Supporters argued the measure removes barriers to legal system access for low-income people, elderly individuals, disabled persons, and rural residents, aligning with federal practice. Opponents, led by Asm. Walsh, expressed concern that affirmations lack the safeguards of notarized affidavits and worried about veracity issues with unrepresented litigants. The Democratic Majority supported the bill while the Republican Conference opposed it.
A09478-A
PASSED
2024-06-07
An act to amend the State Administrative Procedure Act and the Civil Practice Law and Rules, in relation to use of an affirmation of truth of statement in an administrative proceeding
The Assembly passed A09478-A, sponsored by Asm. McMahon, expanding the use of affirmations in administrative proceedings under the State Administrative Procedure Act. The bill allows any person to use affirmations—statements made under penalty of perjury—in lieu of affidavits, eliminating the requirement for notarization. Supporters argued the change removes barriers to legal system access for low-income individuals, elderly residents, disabled persons, and rural New Yorkers, aligning New York with federal practice. Opponents, led by Asm. Walsh, contended the expansion removes important safeguards by eliminating notary verification and should be limited to licensed professionals whose credentials are at stake. The Republican Conference opposed the measure; the Democratic Majority supported it. The bill takes effect immediately.
A09478-A
PASSED
2024-06-07
An act to amend the State Administrative Procedure Act and the Civil Practice Law and Rules, in relation to use of an affirmation of truth of statement in an administrative proceeding
The Assembly passed A09478-A, sponsored by Asm. McMahon, expanding the use of affirmations under penalty of perjury in administrative proceedings under the State Administrative Procedure Act. The bill eliminates the requirement for notarization, which sponsors argued creates barriers to legal system access for low-income individuals, the elderly, disabled persons, and rural residents. The measure also repeals existing language limiting affirmations to attorneys and medical professionals, making them available to all persons. Republicans opposed the expansion, with Asm. Walsh arguing that notarization requirements serve as important safeguards for truthfulness, particularly for unrepresented litigants. The Democratic majority supported the bill, which aligns with longstanding federal practice.
A09478
TABLED
2024-05-30
An act to amend the Civil Practice Law and Rules, in relation to use of an affirmation of truth of statement in an administrative proceeding; and to repeal certain provisions of such law relating to making a technical correction thereto
A09505
PASSED
2024-04-04
An act to amend the Family Court Act and the Domestic Relations Law, in relation to establishment and modification of child support orders
The Assembly passed A09505, sponsored by Ms. McMahon and others, updating New York's child support guidelines to conform to federal regulations. The bill allows courts discretion to consider specific circumstances when establishing child support awards and imputing income to payor parents. Ms. McMahon stated the changes are necessary for state compliance with federal regulations and to make New York eligible for federal monetary incentives through the Social Security Administration. The only substantive change is elimination of a prohibition against considering incarceration as voluntary unemployment, as required by federal regulation. Ms. Walsh confirmed the bill does not broaden existing income imputation practices beyond this single change. Federal and state guidelines are reviewed every four years to ensure synchronization.
A5729-A
PASSED
2024-03-14
An act to amend the Insurance Law, in relation to requiring certain insurers to provide coverage for tattooing performed by a physician as part of breast reconstruction surgery
A07403-A
PASSED
2023-06-09
Amending the Public Authorities Law in relation to facilitating the purchase by the State of New York Mortgage Agency of mortgages on manufactured homes
A07444-A
PASSED
2023-06-09
Pension Benefits for Extended Second Public Employment; Retirement System Reserve Transfers
A06049
PASSED
2023-06-08
Amend the Social Services Law, in relation to medical assistance to certain disabled individuals
A07436
PASSED
2023-05-30
An act to amend the Environmental Conservation Law, in relation to extending the authority of the Department of Environmental Conservation to restrict the taking of fish, shellfish, and crustacea in special management areas
Source: Official NY Assembly floor session transcripts (Granicus). AI-processed. Includes sessions from 2023 onward where transcripts are available.
Bill Focus Areas 2025–2026
bills
bills
bills
bills
bills
bills
bills
bills
Grouped by law section from sponsored Assembly bills. Source: NYS Open Legislation API.
Lobbying Activity
No lobbying disclosures on record for this member in the available dataset (JCOPE filings targeting Assembly members).
Source: NY Commission on Ethics and Lobbying in Government via data.ny.gov.