Reported here:
Kelly Ayotte of New Hampshire was the first Republican senator facing a competitive re-election to say she would no longer back Mr. Trump, announcing in a statement that she would write in Mr. Pence for president instead. “I’m a mom and an American first, and I cannot and will not support a candidate for president who brags about degrading and assaulting women,” she wrote on Twitter. ... Mr. Trump, after monitoring television coverage, realized he was becoming isolated by his party.
