Sen. Rand Paul outlined reforms geared toward improving conditions for minorities.
Bush said existing laws allow too many people to stay in U.S. as they await hearings.
On the GOP side, Florida Sen. Marco Rubio is closing in on former Gov. Jeb Bush.
Rubio referred to "growing intolerance" of different opinions on same-sex marriage.
"Who knows what happens down the road?” Corker said.
The Minnesota Republican says she might run for president again.
Presidential contender tries to fill gap left void in failed 2008 White House bid.
Rubio argues Hillary Clinton wouldn't move country forward.
Georgia Republicans will be relieved come Wednesday, when the party has nominated either Rep. Jack Kingston (R-Ga.) or businessman David Perdue (R) as the party's Senate nominee and the two stop their scorched-earth TV war.
Julian Hattem 07/21/14 12:34 PM EDT
Her visit comes after Rand Paul made his pitch to Silicon Valley ahead of a possible run.