GOP rattled by Trump rally

Republican lawmakers are feeling rattled after a long week capped by a raucous presidential rally where thousands chanted “send her back” at Rep. Ilhan Omar (D-Minn.), a Somali refugee who became a U.S. citizen and one of the first Muslim women to serve in Congress.

President Trump distanced himself from the chant on Thursday, saying it made him unhappy and that he disagreed with it.

But he also did not seek to tamp down the chant when it happened on Wednesday night, and the crowd was clearly responding to Trump’s...