Kansas Secretary of State Kris Kobach is trying to intervene in a lawsuit filed by a voter who wants to force the Democratic party to name a new U.S. Senate nominee.
Kobach filed a motion on Wednesday in Shawnee County District Court.
David Orel of Kansas City, Kansas, filed the lawsuit. Orel is has been a registered Democrat for years, but his son works on Republican Governor Sam Brownback's re-election campaign.
Democrat Chad Taylor dropped out of the U.S. Senate race against Republican Senator Pat Roberts earlier this month, leaving independent candidate Greg Orman as the only major rival to Roberts.
Kobach, who is a Republican, said in his filing that his office supervises elections and Orel's case must be settled by next Wednesday.