Too little too late, Mr President? Romney DOUBLES his lead in new national poll just hours after Obama goes to war in final TV debate

◼ Rasmussen poll puts Romney at 50% with Obama on 46% - Toby Harnden/Daily Mail

Mitt Romney has doubled his lead in a new national poll just hours after the explosive final presidential debate - and with just two weeks to go until election day, it is unclear whether Barack Obama will be able to make up the gap.

The Republican candidate held a four-point lead in the Rasmussen tracking poll released on Tuesday, with 50 per cent of the vote compared to 46 per cent for the President. In Monday's poll he led by two points.

In addition, Romney's lead was five points in swing states and as many as nine points among self-declared independent voters.