It's become conventional wisdom that President Obama's new lead in the polls is a bounce, coming out of the Democratic convention in Charlotte, N.C.

But an analysis from the Wesleyan Media Project suggests that the bounce might be due to TV ads as much as grand speeches. The Obama campaign and its allies laid out $21.1 million for TV during the two weeks of the party conventions. Over that same stretch, Republican Mitt Romney and his backers spent significantly less, $12.9 million.

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And I'm Audie Cornish. British Prime Minister David Cameron apologized today for a pattern of lies and official cover-ups over Britain's worst sporting disaster. Ninety-six soccer fans were crushed to death at the Hillsborough Stadium in the city of Sheffield in 1989 and then falsely blamed for the disaster. Vicki Barker reports from London.

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In this hour of the program, we remember Christopher Stevens, the first sitting U.S. ambassador killed in more than 30 years. And we'll explore how the attacks in Libya and Egypt have become fodder for political debate.

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We'll hear more from Secretary Clinton in a moment, but first to Benghazi and to Reuters' Middle East correspondent, Hadeel Al-Shalchi, who's been trying to piece together what happened.

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From Rahm Emanuel now to his formidable foe in these negotiations, Karen Lewis, the head of the teachers' union. Lewis in recent weeks has called the mayor a bully and of his leadership style has said, quote, "The whole idea of an imperial mayoralty where you wave a magic wand or cuss someone out and things happen is untenable."

To learn more about Lewis, we turn to Joel Hood. He's a reporter at the Chicago Tribune. Welcome, Joel.

JOEL HOOD: Thanks for having me.

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And I'm Melissa Block. Support for same-sex marriage has come from what seems an unlikely corner - the NFL. Two NFL players have been vocal in urging support for same-sex marriage in ballot initiatives this fall. Well, that position from linebacker Brendon Ayanbadejo of the Baltimore Ravens drew the ire of a Maryland delegate, Emmett Burns, who urged the Ravens to silence their player.

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SECRETARY HILLARY CLINTON: This is an attack that should shock the conscience of people of all faiths around the world.

Americans donate billions of dollars to charity each year, and a portion of that money is raised by telemarketing solicitations.

Some of those charitable contributions are solicited by InfoCision Management Corp., an Ohio-based telemarketing company that, on its website, claims to raise more money for nonprofit organizations over the phone than any other company n the world.

For months, the tax-exempt Crossroads GPS has argued that its anti-Obama ads were merely issue ads and not political ads. No more. Today the group went up with ads explicitly telling viewers to vote against President Obama.

Co-founded by Republican operative Karl Rove, the group began running a 30-second spot Wednesday morning in Nevada that blames a weak economy and poor housing market on Obama and ends with the wording: "This election ... don't blow another vote on Obama."