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.
N.J. Gov. Chris Christie’s chief economist is resigning after years of flawed forecasts.
She "really does need some time to think through this,” Clinton said.
No one is yet close to officially declaring but the fight has already begun.
The candidate Republicans are most worried about can also draw out the GOP base and donors.
But "I don’t think he could ever be elected president," Rep. John Yarmuth (D-Ky.) added.
"Do I support the Supreme Court decision in the Hobby Lobby case? I do," he said.