The Republican National Committee’s chairperson has said that all GOP primary candidates should sign a pledge promising to support the eventual party nominee if they wish to participate in the presidential debates. Ronna McDaniel, the RNC’s leader since 2017, told CNN in an interview Sunday that even though the debate criteria have not yet been released, the loyalty pledge should nevertheless be a “no-brainer” for the party’s presidential hopefuls. “If you’re going to be on the Republican National Committee debate stage asking voters to support you, you should say, ‘I’m going to support the voters and who they choose as...