Huckabee blamed the push to legalize same-sex marriage.
"There is every appearance that Hillary Clinton was bribed."
A Fox News poll also shows the Florida senator leading the 2016 Republican field.
“I’m the most experienced, period,” the Ohio Republican governor told a D.C. crowd.
Jindal said his opposition to gay marriage was "faith-driven."
Four of the most vulnerable GOP senators bucked their party on the attorney general vote.
Kevin Cirilli 04/23/15 02:26 PM EDT
"[She's] is going to raise a tremendous amount of money," he said.
The announcement from Peter Schweizer comes as Clinton Cash is under attack.
Joe Heck, an Iraq veteran, is under pressure from national Republicans to get in the race.
Clinton will speak at New York’s David H. Koch Theater on Thursday evening.