A new ad from the Democratic Senatorial Campaign Committee is accusing Nevada GOP Senate candidate Joe Heck of supporting a Wall Street-favored plan to privatize Social Security. 

“Wall Street invested over a half million dollars in Congressman Heck’s campaigns,” a narrator says. “And Heck supports their agenda, privatizing Social Security.”

The ad is part of a previously announced ad buy in Nevada from the DSCC’s independent expenditure arm. 

[Poll: Nevada Senate Race All Tied Up]

Heck faces Democrat Catherine Cortez Masto, the state’s former attorney general, who retiring Sen. Harry Reid has designated as his successor. 

Nevada is the only plausible pickup opportunity for Senate Republicans this year, and GOP strategists are confident they will win the state despite its growing nonwhite electorate. Recent polls have shown the race to be a dead heat. 

The race is rated a Tossup by The Rothenberg & Gonzales Political Report/Roll Call.