"The bottom line is that Donald Trump is going to be the nominee," Corey Lewandowski said.
Sixty percent have no opinion of Fiorina or say she has "no impact" for Cruz.
A top Koch network group launched ad buys in Wisconsin and Nevada.
"This is a fight for the soul of our party," Fiorina said.
Former presidential candidate Jim Gilmore failed to get elected as a delegate to the GOP national convention.
Trump said he’d make the country release the doctor who allegedly helped the CIA find Osama bin Laden.
Wasserman Schultz said she would scrap open primaries if it were up to her.
“The truth is at the Trump rallies, it’s the safest place you can be."
"He's certainly a smart guy, but there's also a temperament issue."
"Donald Trump is lying about Ted Cruz," a narrator says.