'It's a wakeup call for PM'

Sarah Teather enters the House of Commons as the youngest MP at the age of 29.

The Lib-Dem delivered a punchy victory speech punctuated with cheers from supporters and shouts of abuse from Tory aides. She said: "Tony Blair, I hope that you are listening. The people of Brent have spoken for the people of Britain. They want you to listen. They want you to deliver."

She said: "Tonight's result is a vindication of the courageous stance that Charles Kennedy has taken on issues such as Iraq, but also health and schools."

Standing around disconsolately, a Labour MP said: "It was about trust, both on delivery in public services, and on Iraq and the Hutton Inquiry."

Charles Kennedy, welcomed in at half past three by cheering activists, greeted Ms Teather with four kisses and two hugs. He praised her as a "national political sensation".