John Harwood: “Trump, trailing Clinton by several percentage points nationally and in most battleground states, was on track to lose the election before disclosure of the tape. Republican confidence that he can close that gap and win has vanished as Trump approaches Sunday night’s second debate with Clinton in a severely-weakened position.”
“The principal question now is how many other Republicans go down with him. Democrats need to gain at least four seats to win back a Senate majority; their odds are good.”