Listen to Attorney Phil Berg explain his research into O'bama's birth city, which happens to be outside the United States of America. If proven true, Obama is neither a Natural Born or Naturalized citizen and should be deported. Likewise, those who supported him are subject to impeachment.
Unless he has taken the Oath of Allegiance as a Naturalized Citizen since he was 18 years old, and if he was born in Mombasa, Kenya, Barack Hussein Obama II would not be a US Citizen, period. The issue of whether or not he was Natural Born under Article II of the Constitution of the United States would cease to matter and he would need to be Deported as an Illegal Alien.