“[Picking Ryan] will be a net benefit for Democrats in congressional races,” said John Anzalone, a Democratic pollster at Anzalone Liszt Research. “The Ryan budget is one of the main reasons we pick up a low double digit in House seats.”

“It will be about the Ryan plan,” a House Democratic aide said of the election. “Romney has totally embraced it.”

“The Republican budget is the defining contrast in this election,” said Jesse Ferguson of the Democratic Congressional Campaign Committee (DCCC). “It’s where Republicans put millionaires and their tax breaks ahead of seniors and their Medicare.”

Ferguson said the DCCC had not yet gone on the air with advertisements, but candidates are highlighting the Ryan plan. They used the recent anniversary of Medicare’s enactment to go after Ryan again.