Political reform: The key facts
Gordon Brown is due to give a speech this afternoon, promising to stage a democracy day in 2011 if Labour is re-elected. That will be 100 years after the Liberal leader Lloyd George's great confrontation with the House of Lords.
• Few, if any, ministers believe Labour can win an outright majority in this election.
• Labour could be the largest party in the House of Commons even if the Tories are well ahead in the opinion polls.
• Nick Clegg says the party with the biggest mandate would have the right to govern. He never says whether that means the party with more seats or more votes. The pollster Peter Kellner estimates that the Tories could gain two million more votes than Labour in England and still get the same number of seats.
• Nick Clegg is terrified of being seen to prop up an unpopular Labour government led by Gordon Brown which could trigger, or be forced to hold, another election at the drop of a hat.
• Hey Presto. A promise of a fixed-term Parliament - that is a limit on the prime minister's power to call an election - and of referendums on voting reform and House of Lords reform that may just change Nick Clegg's mind. And if not his, it may change that of Liberal Democrat activists.