DENVER — The chairman of the Jefferson County Republicans is demanding that a statehouse candidate end his campaign after new revelations about his background.

Last Saturday, Nate Marshall was nominated as the only GOP candidate for the House seat now held by Rep. Max Tyler, D-Golden.

But in the days since the county assembly, Jefferson County GOP Chairman Bill Tucker has learned that Marshall has a criminal record and ties to a white-supremacist group.

“Nate Marshall does not reflect the values of the Republican Party. We strongly oppose his continued candidacy and demand he end his campaign,” Tucker said in a statement Thursday morning.

“The values of the Republican Party — family, community, care and tolerance — are not compatible with Marshall’s views, and we condemn the hateful words and actions associated with him.”

Marshall’s writings about white nationalists were first uncovered by the Denver Post’s Lynn Bartels, who also pointed out an arrest record that includes arrests on suspicion of driving under the influence, driving under suspension and assault and that he was investigated for a Craig’s List scam.

And his tweets include derogatory comments toward Muslims and gays.