WASHINGTON — When Senator Steve Daines, the leader of the Senate Republican campaign arm, quietly informed Senator Mitch McConnell, the minority leader, that he intended to endorse former President Donald J. Trump, Mr. McConnell was fine with the idea.
Mr. McConnell, the Kentucky Republican, is not on speaking terms with the former president, having abruptly turned against him after the Jan. 6, 2021, attack on the Capitol.
Mr. Trump has publicly savaged the senator and repeatedly demeaned his wife with racist statements.
But the minority leader, according to a person familiar with his thinking, believed that somebody in the Senate G.O.P.
leadership ranks should have a working relationship with the party’s leading presidential contender — and it might as well be the man charged with winning back the Senate majority.