US election officials

President Trump has rejected a proposed deal with Iran following a week of high-stakes meetings with advisers and officials, according to The Hill's Sunday shows preview. At the same time, Republicans are scrambling to keep control of Congress ahead of upcoming elections. The weekend talk shows are expected to weigh both the collapsing diplomatic track with Tehran and the GOP's legislative and electoral prospects.

The US Postal Service says it will not deliver mail ballots in states that refuse to hand over voter lists, a requirement tied to a proposal pushed by President Trump. The stand-off puts election officials and the agency on a collision course ahead of upcoming votes, raising concerns about ballot access and administration in affected states.

With the November 3 US election approaching, voters are being reminded of important deadlines, including voter registration cutoffs, the start of early voting, and mail-in ballot request and return dates. Outlets are publishing guides to help people make sure their votes count, as election officials urge Americans to plan ahead given expected high turnout and expanded mail voting.