Fact check: Context of key debate claims

— -- A look at the claims made by Republican John McCain and Democrat Barack Obama at the third and final presidential debate Wednesday:

Tax cuts

The claim:Obama said his tax plan offers three times the tax relief as McCain's plan does for the middle class.

The facts:The non-partisan Tax Policy Center shows that is the case for the first year of Obama's plan, but not over the long haul, and only for a narrow slice of the "middle class" — those making between $37,595 and $66,354. The group says Obama's plan would save those families $1,042 in the first year, compared to McCain's $319. In later years, the difference is not nearly as great. In 2012, the last year of the next president's term, the difference is smaller: a $2,197 tax cut under Obama's plan compared with $1,441 under McCain's. And for people earning more but who still consider themselves middle class — those earning up to $112,000 — Obama's plan would cut their tax bill by $1,264 in 2009, McCain's plan by $994.

Bill Ayers

The claim:McCain criticized Obama's association with former Chicago radical Bill Ayers, whom McCain called "a guy who in 2001 said he wished he would have bombed more."

The facts:Ayers was a member of the Weather Underground, a radical group that engaged in domestic bombings to protest the Vietnam War. He was in hiding for years after three Weathermen died in 1970 when bombs they were making exploded. Federal charges against him for crossing state lines to incite riots and conspiracy were dropped because of prosecutorial misconduct.

In a New York Times story published by coincidence on Sept. 11, 2001, about his memoirs, Fugitive Days, he said, "I don't regret setting bombs … I feel we didn't do enough."

These days, Ayers is a professor at the University of Illinois at Chicago who has drawn kind words from the city's mayor.

Ayers and Obama have moved in some of the same circles. Ayers was a founder of the Chicago Annenberg Challenge, a school-reform group. Obama chaired its board from 1995 to 1999. In 1995, Ayers hosted a brunch for Obama, who was running for the Illinois Senate. In 1997, they were on a juvenile justice panel sponsored by the University of Chicago. Ayers gave $200 to Obama's 2001 state Senate campaign, and the two were on a 2002 panel on intellectualism that was co-sponsored by the Chicago Public Library.

Spending

The claim:Obama said he has proposed "a net spending cut," adding "every dollar that I've proposed, I've proposed an additional cut so that it matches."

The facts:The non-partisan Committee for a Responsible Federal Budget estimates that Obama's spending and savings policies would emerge in 2013 with $144 billion in net savings. However, that's dependent on a phased withdrawal from Iraq over 16 months, leaving only 30,000 troops in Iraq and Afghanistan by 2010. It also relies on several less-than-specific spending cuts and changes. And Obama's overall economic policies still would lose money, because his tax cuts would cost $360 billion and his health care plan would cost $65 billion over that period, the group says.