Former President Trump said Saturday that North Carolina Rep. Ted Budd has his "complete and total endorsement" to replace the state's retiring Republican U.S. Sen. Richard Burr.

Why it matters: The 2022 race for Burr's seat is set to be one of the most watched in the U.S. It could determine the balance of power in the Senate, which is technically split 50-50, with Vice President Kamala Harris having the tie-breaker vote.

The big picture: Trump vowed on stage at the 2021 North Carolina GOP state convention that "we're going to campaign with" Budd, who joins a packed Republican primary field.

• His endorsement came after his daughter-in-law Lara Trump, who had been tipped to run, said "no for now" to entering the race — though she added, "Not no forever."
• Other candidates include former state Gov. Pat McCrory and former N.C. Rep. Mark Walker.