Hillary Clinton holds a 20 point lead over Joe Biden and a 26 point lead over Bernie Sanders.
The Club for Growth has been actively opposing the Republican front-runner.
Paul wants a watchdog to investigate all fetal tissue research supported by HHS.
Julian Hattem 10/06/15 10:20 AM EDT
The defense came hours after McCarthy was featured in a new Hillary Clinton campaign ad.
"I would say 'Hey, guys, everybody attack him!' "
Rubio says many laws under discussion would not prevent gun violence.
"I don't think he's going to be on the ballot by Feb. 1," Stuart Stevens said.
"Why would I get out?" asked Trump, who's seen his lead slip in some polls.
“We just get bogged down in the Middle East," he said.