Sen. John McCain criticized both Clinton and Trump.
Sen. Feinstein called recent hacks a "clear effort to discredit the Clinton campaign."
Sen. Jeff Sessions says he was mischaracterized.
Sen. Jeff Flake said Republicans "should not be Ok" with Trump's comments.
John Thune noted he is only backing GOP candidates in November.
Pat Toomey says he has "serious reservations" about Trump.
The survey was conducted after the second presidential debate of 2016.
The Texas Republican called Hillary Clinton "an absolute disaster."
The Senate leader asked a woman to stop recording a speech he gave in Kentucky.
Johnson is pledging to make his next term his last if he wins a tough reelection race in November.