The Obama campaign is giving a glimpse of the future for conservative free speech. They’re trying to sic the Justice Department on TV stations, many of them Sinclair Broadcasting stations, that are airing the independent ad on Obama and Bill Ayers.

Feel the chill in the air?

Barack Obama is striking back fiercely and swiftly to stamp out an ad that links him to a 1960s radical, eager to demonstrate a far more aggressive response to attacks than John Kerry did when faced with the 2004 “Swift Boat” campaign.

Obama not only aired a response ad to the spot linking him to William Ayers, but he sought to block stations the commercial by warning station managers and asking the Justice Department to intervene. The campaign also planned to compel advertisers to pressure stations that continue to air the anti-Obama commercial.

It’s the type of going-for-the-jugular approach to politics many Democrats complain that Kerry lacked and that Republicans exploit.

Obama’s target is an ad by the conservative American Issues Project, a nonprofit group that questions Obama’s ties to Ayers, a founder of the Weather Underground organization that took credit for a series of bombings, including nonfatal explosions at the Pentagon and U.S. Capitol four decades ago. ..

… Obama spokesman Tommy Vietor said Obama supporters have inundated stations that are airing the ad, many of them owned by Sinclair Communications, with 93,000 e-mails. He called the ad false, despicable and outrageous.

“Other stations that follow Sinclair’s lead should expect a similar response from people who don’t want the political discourse cheapened with these false, negative attacks,” Vietor said.

Bullying You Can Believe In.

Related: “New Obama ad: Why is McCain trying to distract us with that unrepentant terrorist I’m friends with?”

Related: Obama responds to Ayers.