Here's a quick look back at what's happened today:
- Prime Minister David Cameron said he has accepted an offer to take part in one seven-way TV debate at the beginning of April
- Labour leader Ed Miliband again challenged Mr Cameron to agree to a head-to-head debate
- Two prominent Labour MPs said police and intelligence officers who give evidence on an alleged Westminster paedophile ring must be protected from prosecution
- Home Secretary Theresa May said she would not expect officers to be charged if they disclosed such information
- Former Conservative cabinet minister Ken Clarke said the government's Fixed Term Parliaments Act was a "mistake"
- Reports said the Conservatives have drawn up plans to allow some parents to leave homes worth up to £1m to their children without paying inheritance tax
That's all from Politics Live for tonight. We're back for a big day tomorrow, with live Budget coverage getting under way at 06:00 GMT. See you then.