The Constitution specifically forbids titles of nobility and accepting gifts from foreign kings. Yet Obama flouted the Constitution today when he accepted a Nobel prize and started his speech in Norwar thusly "Your Majesties, Your Royal Highnesses, distinguished members of the Norwegian Nobel Committee, citizens of America, and citizens of the world...."

It's an impeachable offense, and it's just one of the reasons that "20% of voters, including 35% of Republicans, support impeaching Obama for his actions so far." Imagine how quickly they would have impeached George W. Bush if he had violated the Constitution.