Source: Julie Pace / MSNBC Washington — The White House is vigorously defending President Barack Obama's right to keep the U.S. military engaged in Libya without congressional approval, but its arguments aren't soothing the anger among Republican lawmakers and anti-war Democrats. In a report sent to Congress on Wednesday, administration officials said that because the U.S. is in a supporting role in the NATO-led bombing mission, American forces are not facing the "hostilities" that would require the president to seek congressional [...]