WASHINGTON, D.C. - President Barack Obama had to try a couple of doors at the White House before finally gaining access to the Oval Office on Wednesday. Returning from a five-day trip to Latin America, video shows the president strolling up to french doors at the White House and trying the handle on a locked door. He appeared to be whistling as he made his way down to another set of doors that were open. White House staff was apparently not informed that the President was coming back to work before his arrival. You can watch the video above. If...