Get ready for more campaign ads in Minnesota.

The 112th Congress may only be two months old, but national groups are already going on the air and to the phones for some 2012 congressional politicking.

Rep. Tim Walz is one of 12 Democratic House members targeted in a new batch of radio ads from Crossroads GPS, the independent group backed by former Bush strategist Karl Rove, which hit Walz for voting against the Republican bill last week that cut $61 billion in spending for fiscal year 2011.

The group is also running radio ads for 10 Republicans, including freshman Rep. Chip Cravaack, praising them for supporting the Republican legislation. Last month, Crossroads also put out a radio ad supporting Cravaack.

Meanwhile, the Democratic Congressional Campaign Committee (DCCC) is going after Cravaack and Rep. Michele Bachmann with phone calls and web ads for the spending cuts included in the same bill. The DCCC is targeting 62 districts in all with robocalls, phone calls and web ads.

Other House districts outside the state receiving robocalls, but it's illegal in Minnesota to do so.

Crossroads GPS is spending more than $450,000 on its ads, which includes $15,000 for Walz and $8,670 for Cravaack. The DCCC would not say how much it's spending.

The specific Crossroads ads for Walz and Cravaack are not posted online, but the group used identical ads for all Democrats and Republicans besides the member's name.

The early interest in Minnesota from both Crossroads and the DCCC hints that the state could have some of the more competitive House races in 2012.