They also vied for who's most religious and toughest on illegal immigration.
Christine Todd Whitman showed what a compassionate Republican governor looks like, while Chris Christie took a different, darker turn.
It was a contentious evening in South Carolina, and it saw Cruz finally define 'New York values,' which include support for things he opposes, like marriage equality.
The New Jersey governor claims his anti-trans policies have kept life simple for children in his state.
Saturday Night Live comically portrayed Donald Trump as a bully who mocked Jeb Bush and accused him of being assigned female at birth.
The candidates are endorsing the First Amendment Defense Act, which would prohibit the federal government from stopping discrimination by people or businesses.
Donald Trump says he won't run outside the party structure, as does Ben Carson, in a foreign policy debate marked by many contentious moments.