Here’s a pretty stinging ad from Senator David Vitter, who’s trailing in his runoff for governor of Louisiana:

One of the Paris ISIS terrorists posed as a Syrian refugee to enter France. Now, Obama is sending Syrian refugees to Louisiana & John Bel Edwards pledged to work with him to bring them here! Sign our petition against this now: http://s.heyo.com/c72427
Posted by Senator David Vitter on Monday, November 16, 2015

The ad takes some liberties; fourteen Syrian refugees have entered Louisiana so far this year; the ad makes it sound like Obama decided to send refugees to Louisiana after the Paris attacks. (There was a report that one of the refugees had “disappeared,” but the Louisiana State Police confirm the individual has been settled with a family outside of the state.)

A poll that ended on November 10 had Vitter down by 14; a poll out today has Vitter down six. (Of course, after the Kentucky results, it’s fair to ask how much faith one should have in pre-election polls.)