> then betraying those promises to prop up the regime

I mean thats one way to look at it. Another way was, the lib dems traded everything for the chance to change the voting from FPP to proportional representation, and failed.

Yes, he went back on tuition fees, and worse still wasn't able to make it a graduate tax (hence the stupid loan system)

but the gamble was that, and it was clear at the time.

unlucky for the libdems was they didn't get PR and got blamed for the tories being shites, and were wiped out accordingly.