Vote Smart Weekly Digest

A nonpartisan roundup of this week's key developments in elections, legislation, and civic affairs.

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Research Highlights

Election Integrity

California Primary Vote Count Draws Federal Scrutiny and Election Integrity Debate

California's primary election count remained ongoing as election officials continued processing mail ballots. Federal prosecutors announced election-fraud investigations and sent an observer to a Los Angeles vote-counting center, while state officials emphasized that California law allows ballots to be counted after Election Day if they meet statutory requirements.

Sources: AP News | NBC News

Misinformation

Prediction Markets Tighten Rules on Election-Related Misinformation

Kalshi and Polymarket announced new restrictions on paid affiliates and content creators who promote election-related claims that contradict official election results or spread false information. The policy changes followed social media posts questioning California's vote-counting process after the June 2 primary, prompting both companies to strengthen enforcement of their content standards and affiliate policies.

Sources: NPR | The Guardian

Voting Rights

DHS Expands Voter Citizenship Verification and Mail Ballot Monitoring Initiative

The Department of Homeland Security approved a plan that would allow states to verify voter citizenship through federal databases and provide election officials with access to federal records when reviewing voter eligibility. The initiative also includes coordination with the U.S. Postal Service to monitor mail-ballot activity for potential irregularities, as part of broader federal efforts focused on election administration and voter eligibility verification.

Sources: Fox News | Breitbart

Elections & Biographies

Primary Election

Democratic Nomination · ME US Senate

Graham Platner Wins Maine Democratic Senate Primary

Democrat Graham Platner won the Democratic nomination for U.S. Senate on Tuesday, June 9, 2026, defeating fellow Democrat and current Governor Janet Mills by a margin of 71.8% to 19.5%. A military veteran, Platner entered the race with support from several labor unions and community organizations. He will face Republican incumbent Susan Collins in the November general election.

View ME Results →

Primary Election

Republican Renomination · SC US Senate

Lindsey Graham Wins South Carolina Senate Primary

Republican incumbent Senator Lindsey Graham won his primary election on Tuesday, June 9, 2026, securing renomination with 56.8% of the vote compared to challenger Mark Lynch's 28.9%. Backed by an endorsement from President Trump, Graham advanced comfortably and will face Democratic nominee Annie Andrews in the November general election.

View SC Results →

More Elections This Week:

Maine

• Congressional Primary

• Gubernatorial Primary

• State Legislative Primary

Nevada

• Congressional Primary

• Gubernatorial Primary

• Statewide Primary

• State Judicial Primary

• State Legislative Primary