In releasing polling Tuesday that sought to bolster its argument that Americans oppose “card-check” legislation for unionized workers, the Coalition for a Democratic Workplace also released polls on three of the most hotly contested Senate races of the cycle.

In Colorado, the Republican polling firm McLaughlin & Associates found Rep. Mark Udall (D) leading former Rep. Bob Schaffer (R), 44 percent to 32 percent. The survey of 400 likely general election voters taken March 6-9 had a 4.9-point margin of error.

In Maine, Sen. Susan Collins (R) had a solid lead over Rep. Tom Allen (D), 54 percent to 31 percent. The poll of 400 likely voters March 6-9 had a 4.9-point error margin.

In Minnesota, Sen. Norm Coleman (R) had a 46 percent to 40 percent lead over comedian Al Franken (D) in the McLaughlin poll. The pollster interviewed 500 likely voters March 6-9. The poll had a 4.5-point error margin.

The poll found in all three states that non-union households were far more likely to support the Republican candidates, and also suggested that voters are less likely to support candidates who favor a card-check process for union membership, a provision favored by unions and many Democratic leaders.
— Josh Kurtz