When the Washington PostFact Checker looked at this question, NRA spokesman Andrew Arulanandam pegged Landrieu’s vote "to take away your gun rights" to her support of the Toomey-Manchin proposal (named after its sponsors, Sen. Pat Toomey, R-Pa., and Joe Manchin, D-W.Va.).
That proposal, which failed 54 to 46 in April 2013, did not ban the sale of any firearms. Its most significant provision would have expanded federal background checks already in place to firearm purchases made at gun shows and over the Internet. You could still buy a weapon from a family member or friend without a background check.
The Fact Checker concluded that it’s hard to envision a situation in which Toomey-Manchin would have prevented a woman from being able to defend herself against an intruder. Assuming the woman in the ad was legally eligible to purchase a firearm (meaning she doesn’t have a criminal record), she would not have any trouble owning a gun in her home — even if Toomey-Manchin passed.
The Fact Checker gave the claim Four Pinocchios, its harshest rating.