Donald Trump Interviews Ted Cruz On 'The Tonight Show Starring Jimmy Fallon'

Jimmy Fallon has one of the best Donald Trump impressions in the world, so he would've missed a trick if he didn't crack it out when he had the other major Republican presidential candidate Ted Cruz on his show.

Cruz is Trump's main rival in the race to the Republican candidacy, and the two have been knocking horns for months. In this short video, they finally put aside their differences so Trump can help Ted prepare for his appearance on 'The Tonight Show'.

Step one: Build a wall.