国际英语新闻：Major British party leaders in last lap of election campaign

He added "It is simple -- vote for what you believe in. If you think their (the Lib Dems) policies are good, vote for them, but if you don't, don't. The Lib Dems are not going out to people and saying 'vote Labour' -– they are trying to take seats off us."

The leader of the Liberal Democrats, Nick Clegg, shifted ground somewhat on Tuesday to assert that proportional representation, reform of the current first-past-the-post voting system which does not favor his party, was not an absolute demand for a coalition.

"I have never talked about preconditions for talks. I have always talked about the things I want to fight for, the changes I want to fight for," Clegg said in a TV interview.

"Yes, I want a new political system because I think the old one is bust."

Clegg needed to leave room for him to deal with the Conservatives if the general election results in a hung parliament with no party holding a majority of seats in the next House of Commons