There is a right-winger named Paul/
Whose siblings don’t rate him at all/
Six brothers and sisters/
Have joined the resisters/
To work for the Congressman’s fall.///
(I tweaked the second line from the tweeted version, on reflection, but either works).
There is an old fellow called Mick/Who's been penning the odd limerick/I admit he's no Keats/But he does them in tweets/So to follow, you just have to click. https://twitter.com/#!/twitmericks
"The limerick master of the twitterati" (The Guardian).