DES MOINES, Iowa (AP) – The Iowa Senate, after working all night to finish the 2014 legislative session, must return for one more day after a dispute developed involving subpoena powers. Senate Democrats intend to pass a resolution granting subpoena power to the Senate oversight committee, but Republicans are resisting. The panel has been looking into allegations involving payments given to fired state employees and other matters.

The House adjourned just before 6 a.m. Thursday but senators remained to pass the resolution, which lets the oversight committee to subpoena witnesses and put them under oath to testify.

Because Republicans object to the plan, a Senate rule prevents the resolution from being debated today (Thursday). Senate Majority Leader Mike Gronstal adjourned the session until 8 a.m. Friday, when a vote will be held and the session adjourned.