“Republicans on Capitol Hill are standing firmly behind Trump because GOP voters and GOP activists and elites are demanding that they do so. There just isn’t much room to break with the president of your party if close to 90 percent of voters in the party approve of him and many of those voters get their news from sources strongly supportive of that president.
Why are Republican voters and elites so strongly aligned with Trump? There’s not a simple answer, but I think identity — rather than ideology — is a big part of it. Trump is defending the identities of people who align themselves with the GOP, and this is a more powerful connection and reason to back him than pure ideological concerns. In defending Trump, conservative voters are really defending themselves.”