A conservative group announced Wednesday that it has started running a second batch of TV ads in Virginia against U.S. Senate candidate Tim Kaine (D).

The Crossroads GPS ad compares Kaine and President Obama on spending and tax policies.

“The tax and spend similarities between Tim Kaine and Barack Obama hurt Virginia families by piling up mounds of debt instead of earnestly tackling the economic and financial problems our country faces,” said Nate Hodson, a Crossroads GPS spokesman. “This spot intends to alert Virginians to the anti-job policies Tim Kaine supports when he should be pushing for real economic solutions to create Virginia jobs.”

The group, founded with the support of former Bush administration political adviser Karl Rove, is airing $1.2 million worth of ads on broadcast and cable in Missouri, Montana, Nevada, North Dakota and Virginia. Virginia’s buy is for $275,000 and the ads will air in the Washington, Richmond and Charlottesville markets.

The group ran its first ad in the fall on a similar topic. Many newspaper editorial boards criticized what they said were distortions in the ads.

Kaine’s campaign quickly responded to the new ads Wednesday by attacking Republican frontrunner George Allen, who faces three others in the GOP primary for the Senate nomination.

“The real similarities are between Rove’s claims and George Allen's big-spending record,’’ Kaine spokeswoman Brandi Hoffine said. “As governor, it was George Allen who grew Virginia’s general fund by more than 45 percent. As senator, it was Allen who inherited a record surplus and turned it into a record deficit, while adding $3 trillion to our national debt and even voting repeatedly to give himself a raise as our country slipped further into the red. Tim Kaine, on the other hand, inherited the economic mess George Allen and Karl Rove helped create.”

Virginia law requires balanced budgets, so technically Kaine did not leave a “deficit” when he left the governorship in January 2010, as the group contends. But his final proposed budget was controversial because it included several spending cuts and tax increases.

Kaine and Allen both have outside groups helping them in one of the highest profile races in the nation. So far, only the conservative groups have aired ads. Kaine has asked Allen to require outside groups to disclose who is funding the ads, but Allen refused.