What are Nick Clegg's pledges worth?

Liberal Democrat leader Nick Clegg reportedly urged David Cameron to "remember the coalition pledge to institute House of Lords reform". I can't believe the man has the gall to invoke the word "pledge" ever again after the way he ordered his party to brazenly betray the students for a few scraps of Tory power.

The man is clearly a half-wit if he doesn't realise that to millions of people the word "pledge" is now a neologism meaning "Liberal Democrat dishonesty".