DENVER -- A campaign commercial by Republican presidential candidate Sen. John McCain attacks his Democratic opponent Sen. Barack Obama as wanting to raise taxes and not ready to lead.

The commercial has factual claims as well as misleading ones, 7News Vote08: Facts or Fiction found.

"Take away the crowds, the chants -- all that's left are costly words," the McCain ad starts out.

"Barack Obama and out-of-touch congressional leaders have expensive plans -- billions in new government spending. Years of deficits. No balanced budgets," the ad says.

To support this claim, the McCain campaign cites the 2009 Democratic budget proposal that Obama supported. That proposal would have spent, for the first time, $1 trillion just on federal agencies and was $21 billion more than President George W. Bush requested.

So it is fact that Obama supported expensive government spending.

"And painful tax increases on working American families," the McCain ad says.

McCain's campaign again cites the 2009 budget resolution, which they claim would raise taxes on people making $41,500 a year. The resolution does not call for any new taxes on the middle class but simply assumes President Bush's tax cuts would be allowed to expire.

An analysis of Obama’s tax plans by the nonpartisan Tax Policy Center finds only families make more than $169,480 would see taxes rise and that the poorest Americans would see taxes drop.

So to imply that Obama would raise taxes on working Americans is misleading.

"They're ready to tax, ready to spend, but not ready to lead,” the commercial ends.

The Obama campaign responded to repeated questions about why the candidate voted for the 2009 budget by pointing to McCain's plans to continue to spend money on the Iraq war. They would not address Obama's votes.

The McCain campaign did not respond to the Tax Policy Center's analysis despite repeated requests to do so.