Nervous Republicans worried about losing the Senate are now debating when to break from Trump. Trump campaign internal polls show Trump’s level of “strong support” dropping from 21 to 17 points since last week, a person briefed on the numbers said. A source close to Iowa Republican Joni Ernst’s campaign said Ernst advisers are upset that a solid seat is now in play. “Joni’s campaign is pissed. They should not be in a competitive race,” the source said. ("This is completely false," an Ernst campaign spokesperson said in a statement. "Folks are energized about re-electing Joni Ernst, President Trump and the rest of Republican ballot in Iowa this November.&quot