* Brown rules out "chaos" of early election over expenses

* First suspension of upper house members in 350 years

* Politician says Britain has had a "spring revolution"

(Updates with retirement of Conservative MP)

By Adrian Croft and Frank Prenesti

LONDON, May 20 (Reuters) - Britain's Gordon Brown dismissed calls on Wednesday for an early election in response to public fury over lawmakers' expenses, saying reform would do more good than the "chaos" of a vote during a recession.

The prime minister, trailing badly in opinion polls before a parliamentary election due by June 2010, said his government's priority must be to fix an economy battered by a recession, the worst since World War Two.

The opposition Conservative Party, surging far ahead in opinion polls, has repeatedly urged Brown to call a snap election to allow voters to pass judgment on a scandal that has badly tarnished the "Mother of Parliaments".

"Do you really want to see tomorrow, in the midst of the recession, while the government is dealing with this, the chaos of an election?" Brown told GMTV, a breakfast television show.