Mr Brown said the Speaker's future was up to the House of Commons |
Mr Martin, under pressure over use of taxi expenses and air miles, was also cheered by MPs at the start of business in the House of Commons on Monday.
Labour MP John Spellar paid tribute to him and warned against an attempted "coup" by political journalists.
Lib Dem leader Nick Clegg earlier also defended Mr Martin, saying he had faced "a bit of a witch-hunt".
A number of MPs are said to want the Speaker to step down as Parliament's standards watchdog investigates a complaint against him.
Home expenses
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