Steve Bell (cartoonist for Britain's THE GUARDIAN) is one of the best political cartoonists out there.
He's not polite.
Political cartooning, particularly in Britain, has never been pretty, polite, or respectful of politicians, and this is a refreshing contrast to the 'funny' school of American political cartooning that started during the Reagan administration.
Here is one of his best recent caricatures:
Bell also has a highly original caricature of Barack Obama here, though I think he missed on John McCain:
I wonder what sort of caricatures people will be doing of President Obama in six month's time? Right now, the cartoonists are definitely giving him a 'honeymoon period'
"If you can't stand the heat, get out of the kitchen." --President Harry S. Truman