Prominent evangelical Pastor Rick Warren will deliver the traditional blessing [1] at Barack Obama's Inauguration. While selecting Rev. Jeremiah Wright would have created many more waves of outrage, the choice of Rev. Rick Warren has caused some ripples of disappointment among Obama's more liberal supporters.

Rev. Warren, who hosted a non-debate [2] between Obama and McCain at his Saddleback Church, publicly supported California's successful gay marriage ban Proposition 8 [3]. But he's also tried to widen the social conservative agenda to include causes like global poverty, human rights, and HIV/AIDS.

Source [4]