Mark Halperin: I've Been Talking to Some Clinton Insiders, They Are Worried About Jeb Bush

"They are worried aboutJeb Bush, they are worried about her laying low while Jeb Bush is out there being agressive...You could say today what Jeb Bush is going to run on and what states Jeb Bush could win that Barack Obama won last time. She needs to start defining herself in the view of a lot of people around her and not let Jeb Bush get up ahead"

Watch Halperin on Face the Nation