UK 1960s
Vote, vote, vote for Harold Wilson,
Voote, vote, vote for Edward Heath,
Play the parliamentary game and you'll find they're just the same,
You Can only tell the difference by their teeth

UK 30's
All the kings horses, all the king's men,
They march to attack and and they run back again,
Jimmy Maxton and the ILP (Independant Labour Party)

there's more to this latter, but can't remember at present

Jim Carroll