There have been calls for the economic development minister to resign over his handling of the Sefton Group bailout.
It was given £4.5 million of taxpayers' money, after claims it was in serious financial straits.
An economic committee report, being debated in Tynwald, has heavily criticised some of the government's action, questioning whether it acted within the law.
Both South Douglas MHK Kate Beecroft, and firstly Michael MHK Alf Cannan, have said Mr Shimmin should remain true to his word, and step down:
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Revised plans for Lord Street bus station development
Consultation for new National Infrastructure Safety Bill
Steam Packet cancels Friday evening sailings
"Ramsey and District Cottage Hospital is not at risk of closure"