The disgraced former congressman announced on social media that he was ending his attempt to win the House seat for New York's First Congressional District.
The state's contests will test the political implications of the Israel-Hamas war and set up key general election matchups in the battle for control of the Senate and the House.
The Biden campaign sees Florida's abortion law and a November referendum on the issue as helping the president's chances in a state Trump won in the last two elections.
The Senate Republican leader pointed to Carlson's "demonization of Ukraine," along with Trump's "mixed views" and resistance to additional aid as reasons it's taken so long to pass.
The Senate candidate supported the 19th-century ban in 2022, came out against it this month, and now appears to be backing it again in a new interview.
Americans for Prosperity Action, which is staying out of the presidential race after backing Nikki Haley during the primaries, is already knocking on doors in Pennsylvania.
American politics has largely been stuck in a narrow band of close division for most of the Biden era. New polling shows what could break it one way or the other.