The dual will held on top of George Washington's head on Mt Rushmore. Obama will obviously have to be shirtless.
Each round will consist of 30 minutes of non-stop action. There are no rules, except rule number 1) stop fighting after the end of each round and rule number 2) do not fight on top of Teddy's head as Obama feeds off of the eternal spirit of any Roosevelt ghost.
Winner is decided either by death, a 5 panel jury, or who ever yields
Rule number 3) is you can substitute swords instead of tactical pens but only if both parties agree to it in writing before the match.