Same-sex marriage was slated to become legal in the state on Thursday.
For the first time since U.S. v. Windsor, a court has sided with a same-sex ban.
"My responsibility is to defend the State Constitution," Attorney General Sean Reyes said.
The decision was expected after the court issued a similar ruling on Utah's ban last month.
Similar to other states, the judge stayed the ruling pending appeal.
One marriage has been recognized on a court-ordered "emergency basis."
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Clinton denied she held back support for gay marriage.
Across the nation, 56 percent support gay marriage.
Prospective candidates walk a fine line on immigration, climate change and gay marriage.
Dent previously voted for both DOMA and his state's gay marriage ban.
Thirteen percent of Democrats say candidates' sexual orientation might change their vote.
"The party can’t become the opposite of what it is," he said.
A Florida circuit court judge last week overruled the state's ban on gay marriage.
The ruling only applies to the single southern county of Monroe, according to report.
The petition for appeal will be sent "in the coming weeks."
The decision was stayed pending appeal, as in several other states.
It was the first appellate movement on the issue since the Supreme Court's 2013 ruling.
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“Ultimately I think that our film is not trying to be political."
Last month, Pennsylvania became the 19th state to legalize gay marriage
Orrin Hatch opposes same-sex marriage, but said legalization is inevitable.
Since December, courts have struck down bans almost once every two weeks on average.