A dozen House Democrats who voted against the healthcare legislation last year are under heavy pressure to vote for its repeal.

The vote sets up a tough political calculation for these Democrats sitting in moderate to conservative House districts. Several of these Democrats survived tough challenges in 2010 and a "no" vote on repeal could hand a potent campaign issue to potential GOP challengers.

Already, two Democrats who voted against healthcare have told The Hill they will not support its full repeal, while a third told Fox News he was leaning toward a "yes" vote on repeal.    

Reps. Collin Peterson (D-Minn.) and Dan Lipinski (D-Ill.) told The Hill they are open to repealing parts of the law and finding fixes, but that both are opposed to voting in favor of a wholesale repeal.  

Rep. Dan Boren (D-Okla.) told Fox News that he's "inclined to support the repeal." 

Republican leaders announced Monday that a full repeal vote will be set for next Wednesday. 

Of the 34 House Democrats who voted against final passage of healthcare last March, just 13 remain after November's midterm elections.  

Aside from Peterson, Lipinski and Boren, the remaining House Democrats who voted "no" are Reps. Jason Altmire (Pa.), John Barrow (Ga.), Ben Chandler (Ky.), Tim Holden (Pa.), Larry Kissell (N.C.), Stephen Lynch (Mass.) Jim Matheson (Utah), Mike McIntyre (N.C.), Mike Ross (Ark.) and Heath Shuler (N.C.).

Matheson, McIntyre and Chandler are among those who survived close House races this past cycle and are sure to be targets in 2012. 

McIntyre, who defeated Republican Ilario Pantano this past fall, is also a likely "yes" vote on repeal. McIntyre has previously signaled his support for full repeal of the law. 

The only other Democrat to publicly back repeal before the midterm elections was Rep. Gene Taylor (D-Miss.), who lost his bid for reelection to Republican Steven Palazzo. 

Meanwhile, the Democratic leadership and the White House are likely to exert pressure on House Democrats in an attempt to have as few as possible vote in favor of full repeal.

-- This post was updated at 11:41 a.m. and 12:55 p.m.