GOP presidential candidate Sen. Rick Santorum defended GOP frontrunner Donald Trump's values during a radio interview on Breitbart News Sunday on SiriusXM Patriot Channel 125.
Santorum also said that with GOP presidential candidate Sen. Ted Cruz, "you've seen a shift" on some issues.
Breitbart News asked Santorum if he believes Trump is sincere on his conservative principles following the recent criticism by Cruz about Trump's "New York values" shared in a 1999 interview between Trump and Tim Russert.
"Past is prologue and if you look at someone's past, it's legit," Santorum began, but added, "people change and that's a good thing. I want to encourage everybody to be more conservative."
"You look at some of the greatest conservatives, many of them changed positions over the years," Santorum added.
http://www.breitbart.com/big-government/2016/01/17/2799029/