Friday 12th September 2008
Here's Kirsty with more details of tonight's programme.
Tonight - Is Gordon Brown's time in Downing Street now running out? For the first time a member of the government has called for a challenge to Gordon Brown's leadership.
Junior whip Siobhain McDonagh says he should face a contest. Newsnight has learned at least one backbencher has also called for nomination papers.
So is this the start of a concerted move to replace the Prime Minister, and if so is the smart money on David Miliband? I'll be speaking live to Siobhain McDonagh and we have convened our panel of political insiders to assess this political moment.
More details have been agreed at talks about forming a power-sharing government in Zimbabwe. Under the plan, Robert Mugabe would remain president and head of the armed forces.
The detail will be revealed and the deal signed on Monday - tonight we'll we analysing what it might contain and whether there is any chance the MDC leader will have full executive powers. We'll be speaking live to Zimbabwe's Ambassador to the United Nations.
Newsnight Review follows at 11pm