Dwayne D. Umbarger (August 2, 1952) is a former Republican member of the Kansas Senate, representing the 14th district from 1997 until 2013.
He has been the Assistant Majority Whip since 2003.
In 1995 and 1996, he was on the ANW Special Education Board in Humbolt, Kansas.
He was also a School Board member for the Consolidated Unified School District #101 in Erie from 1994 to 1996.
Sen. Umbarger serves on these legislative committees:[1] Some of the top contributors to Marshall's 2008 campaign, according to the National Institute on Money in State Politics:[2] Health care companies were his largest donor group.