He noted that comprehensive immigration reform passed the Senate 68-32 in 2013.
"We do need to do something for people … living in the shadows," he said.
Sen. Rubio wants Patrick Kennedy removed from his position pending an investigation.
Rep. Marlin Stutzman came under fire for billing his campaign for a family vacation.
A spokeswoman said McCain will evaluate any potential nominee.
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.