Labor frontbencher Chris Bowen says the Turnbull government should support Kevin Rudd's bid to become the next UN Secretary-General.
The government says the decision has to go to cabinet, but Mr Bowen believes if the former Labor prime minister nominates for the job he should be backed.
"This should be an easy choice for the cabinet, support the Australian," he told Sky News on Sunday.
Senior cabinet minister George Brandis refused to say whether he personally would support Mr Rudd's nomination for the job.
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"I know Kevin quite well and I will refrain from commentary until we have that discussion in cabinet," the attorney-general told ABC TV on Sunday.
