22/10/2012 10:22 BST | Updated 22/10/2012 10:38 BST

Barack Obama Uses Boris Johnson To Attack Mitt Romney (VIDEO)

Ahead of the final presidential debate on Monday evening, Barack Obama has unveiled his secret weapon - Boris Johnson.

In a campaign video titled 'Mitt Romney's Easy Five-Step Approach to Foreign Policy', the Obama campaign references the Republican's "Romneyshambles" visit to London in July.

Step three of Romney's approach to foreign policy is said to be "undermine long-standing relationships with your allies". The video shows Boris mocking Romney to loud applause in London's Hyde Park along with the negative coverage he received in the British press.

The other steps the advert says Romney takes are; "get the facts wrong", "frequently highlight your lack of experience", "assemble a team of ideologues committed to endless war" and "mistake your enemies".

Oh and of course, it is also makes fun of Romney for speaking French. Because apparently that is a bad thing.

Obama will clash with Romney this evening as the pair go head-to-head in the third and final presidential debate that will focus exclusively on foreign policy.