Earlier this month, Sen. Max Baucus (D-MT) went to bat for the NRA by being only one of four Democratic senators to vote to kill expanded background checks for gun purchases.

The Progressive Change Campaign Committee is responding to Baucus's move by launching a new ad featuring Montana gun owner and grandmother Claire Kelly, who herself was a victim of a home invasion and says that gun ownership can protect Americans. Kelly warns, however, against guns being in the wrong hands, which is why background checks are needed.

MSNBC's Rachel Maddow covered the ad on her show tonight. Watch Maddow's coverage:

Click here to pitch in a few dollars to run the ad in Montana.