Bobby Jindal in The Iowa Freedom Summit & Ag Summit (preparation for Iowa Caucus)

On Civil Rights: Institution of marriage existed long before our laws existed

The more conservative members of this Republican field--among them Sen. Cruz; Sen. Santorum; Gov. Bobby Jindal; and Gov. Mike Huckabee--have aggressively emphasized their opposition to same-sex marriage. For them, the issue can be used to differentiate themselves not just from Democrats but from mainstream Republicans, like Jeb Bush, who is trying to appeal to a broader audience with an eye to the general election.

Jindal was critical of Republican lawmakers in Indiana and Arkansas who backed down on laws that proponents say protect religious freedom, while Rubio declared that "the institution of marriage as one man and one woman existed long before our laws existed."

On Civil Rights: I pledge support for a religious freedom law

The Louisiana governor's speech was interrupted twice by standing ovations as he pledged his support for a religious freedom law in his home state that's as strong as the one enacted in Indiana. The Republican governor there, Mike Pence, prodded his legislature to enact a "fix" after threats of boycotts on the state and massive backlash from the business community.

Jindal said he won't back down. "Corporate America is not going to bully the governor of Louisiana," he said. "Here's my message to Hollywood: the United States of America did not create religious liberty. Religious liberty created the United States of America." Both lines got him standing ovations.