Republican Primary Candidates 2024 List. Republicans face a likely crowded field for the chance to challenge president biden, who is expected to announce he's running for reelection. Updated march 6, 202412:28 pm et.

Former president donald trump endorsed two candidates in arizona’s competitive republican primary for the state’s 8th. A majority of the 2,429 delegates (1,215 or more) are needed to win the republican nomination on the first ballot.