The Nauru Parliament is expected to sit tomorrow to allow a vote of no confidence in the Government of President Ludwig Scotty.
Several MPs, led by former Health Minister, Dr Kieren Keke, broke away from the Scotty administration a month ago, and called for the President to resign, claiming he had failed to act on allegations of corruption involving the Foreign Minister, David Adeang.
Mr Adeang has called the claims false.
He says the opposition grouping boycotted a sitting of Parliament at the weekend, but he hopes they will attend tomorrow when the no confidence vote should be the first item on the agenda.
Mr Adeang says the Government is confident it can see off any challenge.
"We would like to do that sooner rather than later and put, I guess, our minds at ease, for, not just I guess for observers from outside but particularly the Nauruan people."