Democrats are crying foul after politically conservative rocker and Mitt Romney supporter Ted Nugent made incendiary comments about President Obama during a weekend appearance at the National Rifle Association convention.

Nugent - who endorsed Romney on Twitter in March after apparently having a "long heart and soul conversation" with the former governor - accused Obama of running a "vile, evil, America-hating administration."

"Your goal should be to get a couple of thousand people, per person here, to vote for Mitt Romney in November," Nugent told a crowd of convention-goers, according to a video of the remarks posted by the website Right Wing Watch.

"If you don't know that our government is wiping its ass with the Constitution, you're living under a rock someplace," he said.

Nugent later says, "If Barack Obama becomes the president in November, I will either be dead or in jail by this time next year."

"Being at the NRA event - god bless you, good indicator - but if you can't go home and get everybody in your lives to clean house in this vile, evil, America-hating administration, I don't even know what you're made of," he said. "If you can't galvanize and promote and recruit people to vote for Mitt Romney, we're done. We'll be a suburb of Indonesia next year."

The Democratic National Committee condemned Nugent - referring to him as a Romney "surrogate" - and demanded that he and the Romney campaign disavow the remarks.

"Romney surrogate Ted Nugent's comments about Pres. Obama are vile & beyond the pale," DNC chairwoman Rep. Debbie Wasserman Schultz posted on Twitter. "The Romney campaign should denounce them immediately."

"Where's the outrage?" asked DNC national press secretary Melanie Roussell on Twitter.

It's unclear what relationship, if any in an official capacity, Nugent has with Romney or the Romney campaign. A spokesperson for the campaign did not immediately respond to ABC News' request for comment.

Romney addressed the NRA convention on Friday, reaching out to gun owners for their support in his bid to take back the White House from Obama.