"We've lost the battle on what the Second Amendment means," campaign president Paul Helmke told ABC News. "Seventy-five percent of the public thinks it's an individual right. Why are we arguing a theory anymore? We are concerned about what we can do practically."

While the Brady Campaign is waving the white flag in the long-running debate on whether the Second Amendment protects an individual's right to bear arms or merely a state's right to assemble a militia, it is hoping that losing the "legal battle" will eventually lead to gun control advocates winning the "political war."

"We're expecting D.C. to lose the case," Helmke said. "But this could be good from the standpoint of the political-legislative side."

But given that McCain stood by his support for closing "the gun-show loophole" during a recent speech to the N.R.A., the Brady Campaign president hopes that new gun restrictions can make headway regardless of who wins in November.

"For John McCain to be the political candidate of the NRA shows how things have changed," Helmke said.