Say what you want about Donald Trump - and there's plenty, believe us - his campaign is nothing if not entertainingly stupid.

He's been accused of racism, misogyny, being wildly out of touch with Americans and he's considered by most political commentators to be an absolute joke.

The more hilarious thing is that Trump is actually leading the polls. Yes, really.

The most recent hilarity from his campaign comes not from his own camp, but from that of fellow US Republican candidate Rick Perry.

In a recent public appearance, Governor Perry challenged the Donald to a pull-up contest. "Let's get a pull-up bar out there and let's see who can do the most pull-ups," which was met by laughter and a round of applause.

Considering Trump's outlandish behaviour so far, it's not unrealistic to believe that Trump might face up to this challenge.

The question is, who'd win? Let's keep in mind that Perry used to be in the US Air Force whereas Trump hosted The Apprentice.

Our money's on Perry.