The GOP led state house judiciary committee convened a hearing on multiple impeachment measures.
There are three separate resolutions aimed at impeaching Nixon.
One of them cites his decision to allow same sex couples married in other states to file a joint income tax in Missouri.
Nixon supporters say it's all a political ploy.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.