Christie also pushed back on perception of Clinton as inevitable Dem nominee.
Sanders is trying to determine whether he can raise the money needed to win, he said.
Only one of her four grandparents immigrated to the U.S., contradicting her claims.
“If it’s somebody in my life that I care for, of course I would."
The White House hopefuls are touting proposals to lower taxes and simplify the IRS code.
“It’s not what she says, it’s what she does," Sanders said.
"Sometimes you just have to be willing to say what the truth is," he told voters.
Timothy Cama 04/15/15 03:12 PM EDT
Former Secretary of State Hillary Clinton met with representatives of Iowa’s ethanol industry...
Bernie Becker 04/15/15 02:21 PM EDT
The 2016 presidential candidate has taken hits from conservatives who prefer a flat tax.