Talking hope, on the 50-yard line

Related rulings:

"The average American family" saw income rise $7,500 under Bill Clinton and decline $2,000 under George Bush.

Barack Obama, Thursday, August 28th, 2008.

Ruling: Half-True | Details

McCain voted 19 times against a minimum-wage increase.

Joe Biden, Wednesday, August 27th, 2008.

Ruling: True | Details

"John McCain has voted with George Bush 90 percent of the time."

Barack Obama, Thursday, August 28th, 2008.

Ruling: True | Details

Three years ago, John McCain said, "Afghanistan — we don't read about it anymore in papers because it succeeded."

Joe Biden, Wednesday, August 27th, 2008.

Ruling: True | Details

McCain "said no to higher fuel-efficiency standards for cars."

Barack Obama, Thursday, August 28th, 2008.

Ruling: Barely True | Details

"Today, we import triple the amount of oil than we had on the day Senator McCain took office."

Barack Obama, Thursday, August 28th, 2008.

Ruling: True | Details

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It was a political rally of epic proportions: more than 84,000 people packed into a football stadium chanting "Yes we can!" On the 45th anniversary of Martin Luther King's "I have a dream speech," Sen. Barack Obama accepted the Democratic nomination for president and told the crowd that "It's time for us to change America."

We checked several of Obama's claims and a couple more from other speakers at the Democratic convention:

• We found Obama was doing a little cherry-picking with his claim that Sen. John McCain "said no to higher fuel-efficiency standards for cars." In fact, McCain has a mixed record, having opposed such measures in 2003 and 2005. But he was such a leader in the effort to raise fuel economy that he was lauded by Sen. Edward Kennedy. We gave Obama's claim a Barely True.

• Obama also was off with his comparison of family income during the Clinton and Bush administrations. We rated that one Half True.

• But Obama was correct with his claim that oil imports have tripled since John McCain joined Congress. That one earned a True.

• And he also got the number right on a popular claim among Democrats this week when he said, "John McCain has voted with George Bush 90 percent of the time." Another True.

We also checked a couple of other claims from Sen. Joe Biden, Obama's running mate:

• Biden correctly quoted McCain as saying, "Afghanistan — we don't read about it anymore in papers because it succeeded." We gave that one a True.

• We also found that Biden had his number right that McCain voted 19 times against a minimum-wage increase. Another True.