The former Fla. governor faces a base hostile to his support for immigration reform.
The NBC/Wall Street Journal poll finds 71 percent want a different approach.
"For Jeb Bush to run in the primary will be very, very difficult," the senator said.
She spoke out at a New York City gala against inequality.
For former lawmaker, campaign for Senate never really stopped.
Paul is wasting no time going after his likely rival for the GOP presidential nomination.
"Lindsay Graham and I, if he decides to run, he’s my closest friend," the 2008 nominee said.
"Think about how President Bush worked out last time," read a DNC pitch.
His moves send clear signals to donors, staffers and challengers he’s serious about a run.
Julian Hattem 12/16/14 03:39 PM EST
His focus on immigration and education may help him with the tech industry.