Expect more reaction to Obama’s same-sex marriage announcement, plus more to watch for Thursday in politics

Look for more reaction from all points to President Barack Obama's announcement Wednesday in an exclusive ABC News interview that he now supports same-sex marriage. The debate is certain to continue about whether it will help or hurt his campaign. The interview, conducted by ABC News' Robin Roberts, will air on "Good Morning America."

While the gay-marriage buzz continues, President Obama will be in Los Angeles for a fundraiser at the home of George Clooney. Guests at the $40,000-per-person event are expected to include Barbra Streisand and DreamWorks Animation CEO Jeffrey Katzenberg.

Mitt Romney, meanwhile, will be campaigning in Nebraska, and Sen. Marco Rubio, who is considered a possible running mate for Romney, will speak in Washington to a group from Des Moines.

Vice President Joe Biden will address a group of students and representatives from higher education about keeping down the cost of education.

The John Edwards trial will reach a key point Thursday when the prosecution wraps up its presentation. The final list of prosecution witnesses did not include Rielle Hunter.

And then there is this: Get out the birthday candles. Rick Santorum turns 54.

Sources: Yahoo! News, ABC News, Associated Press

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