(CNN) - A new ad by the Democratic Senatorial Campaign Committee says women can't trust Washington Republican Senate candidate Dino Rossi.
In the spot, a narrator says Rossi, a former state legislator, "voted to deny unemployment benefits to women who were fleeing domestic violence."
"Rossi wants to take away a woman's right to choose and, in almost every circumstance, make abortion illegal," the narrator says as ominous music plays in the background.
The 30-second ad, which is airing in markets across the state, attacks Rossi's voting record during his time in the state legislature.
"With an atrocious record like this, Washington women will never be able to trust Rossi to look out for them," Deirdre Murphy, a spokeswoman for the Democratic Senatorial Campaign Committee, said in a statement.
The Rossi campaign denied the claims in the ad, and the National Republican Senatorial Committee (NRSC) pushed back at the Democratic candidate, three-term incumbent Sen. Patty Murray.
"It's absolutely appalling that Patty Murray and her D.C. friends have continued to engage in an intentionally misleading and divisive ad campaign to cover up for her support for a failed economic agenda," NRSC spokeswoman Amber Marchand said in an e-mail.
"When you see what trashy advertising Patty Murray is willing to associate herself with, it really reminds voters that she has completely forgotten which Washington she represents," Marchand said.
The NRSC began airing its own ad on Friday in which a narrator says Murray "ranks second in Congress in lobbyist contributions."
"They got bailouts and wasteful spending, we got fewer jobs and debt that could last generations," the narrator says.
According to the latest CNN/Time/Opinion Research Corporation poll, Murray leads Rossi by a 51-43 margin among likely voters. The sampling error for the survey was plus or minus 3.5 percentage points.
– Follow Gabriella Schwarz on Twitter: @schwarzgcnn