The furor over Trump’s assaults on the impartiality of a Latino judge had just begun to subside when he lobbed two tweets Friday morning responding to Warren, who had lambasted him as a "thin-skinned, racist bully" in a speech the previous evening. "Pocahontas is at it again!" Trump wrote in one. "Goofy Elizabeth Warren, one of the least productive U.S. Senators, has a nasty mouth." [Snip] The response to the Pocahontas remarks have been mixed and in many cases muted - a sign of how jittery GOP leaders are still trying to find their comfort level with his rhetoric. [Snip]...