Well, that wasn't much of a break from negative campaign ads. Politico reports that Crossroads GPS is already targeting Democrat Gabrielle Giffords:

Crossroads GPS—the conservative group that carpet-bombed Democrats with a wave of attack ads during the 2010 midterm election—is about to launch its first offensive of the 2012 election cycle.

The organization is rolling out a $400,000 radio ad campaign this week in the districts of 12 House Democrats who won reelection by the slimmest of margins.

The ad campaign, which urges the Democrats to support a vote this week on the tax cut package, marks one of the first major advocacy efforts by an outside group since the Nov. 2 elections and provides a clear signal as to which incumbent Democrats are viewed as vulnerable by GOP strategists in 2012.

Among the Crossroads targets are five Democrats who barely survived the GOP wave in November— New York Rep. Tim Bishop, California Rep. Jim Costa, Virginia Rep. Gerry Connolly, Arizona Rep. Gabrielle Giffords, and Kentucky Rep. Ben Chandler— all of whom were engaged in races so close that the outcome wasn’t know for days, and in some cases weeks, after Election Day.

Read the whole thing here.

BTW, we hear Republican Jesse Kelly, who lost by less than 2 percentage points last month, has not ruled out another run against Giffords and state Sen. Frank Antenori is also considering a run.

Bear in mind, too, that we don't have any idea how the districts will be redrawn.