Barack Obama rings Chris Christie to congratulate him on his re-election as Governor of New Jersey.
'Why, thank you very much, Mr President,' the 30-stone GOP politician gushes down the phone, 'got any advice about going all the way?'
'Hmm,' the President replies, 'that's a tricky one. Let me conference call Vice President Biden for his take on that rocky road.'
A few seconds later Joe Biden joins Obama and Christie on the secure government Skype line, chuckling at yesterday's US gubernatorial results.
'Uh, Joe,' Obama says, 'what's your tip for Chris here about, uh, you know, going all the way to the White House?'
'Same as asking How Do You Get A Fat Bird Into Bed?', Biden replies, 'answer's the same, it's A Piece of Cake'.