President Obama says he's been doing "a lot of praying" in recent weeks while faced with tough choices on Libya and other crises at home and abroad. "I am praying that I'm making the best possible decisions, and that I've got the strength to serve the American people well," he said in an interview Tuesday with ABC News' Diane Sawyer. ....Despite Obama's public professions on religion and spirituality, many Americans continue to doubt the president's faith. Nearly one in five Americans incorrectly believes that Obama is a Muslim, according to a poll by the nonpartisan Pew Forum on Religion and...