Liberal Democrat party leader Nick Clegg has declined to say which rival he would support if Britain's election creates the first hung Parliament since 1974.

But he did say he would back any partner who met his demands to reform Britain's political system, overhaul the economy and reduce taxes for lower-paid workers.

Nick Clegg, Liberal Democrat Leader, said, "I really think it's a measure of the desperation of the Labour Party that they are now trying to come up with 101 reasons why people should vote Labour even if they do not do it with any enthusiasm."

The latest opinion poll indicates the Conservatives may come in first. And it places Labour third.

Brown says if his party slumps, he'll take the blame, and quit as party leader, just three years after replacing Tony Blair.