As the midterm elections approach, and Republicans on Capitol Hill grow weary of answering for an unpopular policy coming out of the White House — in this case, the policy of immediately prosecuting illegal border crossings, resulting in children being separated from their families — I am often asked: Isn’t the party divided? When will Republican leaders say “enough” to President Trump?

This question illuminates the gap between (a) Republican voters and (b) the Republicans who inhabit Washington and professional politics. The Republican Party outside of D.C. — the voters themselves — is largely united behind Trump. In focus groups I conduct across the country, even Republican voters who readily acknowledge Trump was not their first or even tenth choice in the Republican primary in 2017 will nonetheless say they are glad he is picking fights, breaking things, and draining the swamp. Last week, Trump’s approval rating among Republicans tied its record high of 90 percent.