Politics Weekly: Coalition government hit by first resignation

After revelations in the Daily Telegraph about his expenses claims, David Laws became the first member of the new government to resign. After being lauded in the press in his short career as chief secretary to the Treasury his loss will be sorely felt. Is his replacement Danny Alexander up to the job? Also this week we look at how David Cameron dealt with his first batch of prime minister's questions. The chamber was quieter than usual: have we seen the back of 'Punch and Judy politics'? Conservative justice secretary Kenneth Clarke tells us how the week's biggest set-piece political event has changed throughout his career. And as Ken Livingstone declares his intention to return to office as London mayor, we ask whether Boris Johnson will fight again, or whether he's eyeing a return to parliament. With Libby Brooks , Julian Glover and Tom Happold .