U.S. Sen. Dean Heller is up with a new television ad attacking Rep. Jacky Rosen for having done “zero” to help Nevadans during her first term in Congress before announcing her bid for the Senate.

The 30-second spot, which begins running today and will air statewide, highlights Rosen’s short political record as a freshman congresswoman who had no prior political experience before making the bid for Nevada’s 3rd Congressional District in 2016. Throughout the ad, the narrator reiterates the number “zero” to refer to Rosen’s record in the House.

“Zero. That’s the number of bills Jacky Rosen passed in Congress before announcing she was running for the Senate,” the narrator says. “Zero. Zero bills to help veterans. Zero bills to improve health care. Zero.”

The ad notes that Rosen announced her bid for the Senate just six months after beginning her term in the House. It also suggests Rosen had “plenty of time to campaign in California, raising money in Hollywood” but “zero” time to help Nevadans.

In a statement, Rosen spokeswoman Molly Forgey criticized Heller for having spent more than a decade in Washington, D.C. "caving to his special interest donors and party leaders, including weakening protections for pre-existing conditions, voting ten times to defund Planned Parenthood, and opposing bipartisan plans to protect Dreamers."

Her campaign also pushed back on the assertion that Rosen had passed "zero" bills before announcing her bid for the U.S. Senate by pointing to six pieces of legislation that Rosen co-sponsored that passed the House before the end of June 2017. Rosen formally announced her bid on July 6, 2017.

Her campaign also highlighted the National Defense Authorization Act of 2018, which passed out of the House Armed Services Committee in June 2017 and through the House in July 2017 and included a Rosen-backed amendment.

On the campaign trail, Rosen often talks about nearly 400 bills she has signed on to since entering Congress last year. According to the most recent totals from the Congressional website, Rosen has directly sponsored 22 bills and co-sponsored another 419 bills.

"Congresswoman Rosen has earned Nevadans' support by working across the aisle to fight for hardworking families, while Dean Heller is a career politician who has shown time and time again that he doesn't have the backbone to stand up to Republican donors and leaders in Washington," Forgey said.

But as a freshman member whose party is in the minority in the House, Rosen has had little pull to get her bills passed into law. Two of Rosen’s STEM education bills, the Building Blocks of STEM Act and the Code Like a Girl Act, passed the House in February as a combined measure, and eight of the bills she has co-sponsored have become law, according to the Congressional website.

Updated 8-28-18 at 1:04 p.m. to include additional information from Rep. Jacky Rosen's campaign.