A Green Party candidate for the U.S. Senate must be included on the state's ballot for the Nov. 5 election, the Montana's Supreme Court ruled Tuesday.

The Montana Supreme Court on Tuesday affirmed a lower court ruling that allowed the state’s Green Party Senate candidate to remain on the ballot in November, a blow to Democrats’ efforts to prevent what they expect could be a spoiler in the close race between incumbent Sen.

A five-justice Montana Supreme Court panel on Tuesday denied the Montana Democratic Party’s request that the court take over its case challenging the appointment of the Green Party’s U.S. Senate candidate,

Green Party candidate Robert Barb will remain in Montana’s U.S. Senate race following a court’s rejection of Democratic Party efforts to keep Barb off the ballot.

The Montana Supreme Court ruled that a third-party Senate candidate can remain on the November ballot, rejecting the state's Democratic Party lawsuit.