America on its knees before a king

Why did President Obama bow to the King of Saudi Arabia? The president of the once proud nation of America now pays obeisance to a Muslim king? Obama has decreed that we are no longer a Christian Nation does this mean that we are a Muslim nation? I don't see him finding a church to go to and he seems to get along very will with most of the Muslim nations. He said he is not Muslim but actions speak louder then words.