Ted Cruz fought his way to second place in the Republican primary as the conservative who never compromises. But already, he’s learning to stretch. Behind closed doors, Cruz’s aides are talking about how to draw more centrist supporters as Republican rivals drop out. They have given former Jeb Bush donors access to the entire campaign leadership team. And Cruz has made overtures to Senate colleagues who despise him, praising Mitch McConnell and Marco Rubio and talking by phone with Lindsey Graham.