MTN News reports that witnesses for the Montana Democratic Party presented evidence Tuesday, asking a judge to disqualify certain signatures for the Green Party on the 2018 state ballot. Green Party members say they believe the signatures are legitimate. Six Green Party candidates are currently on the ballot – three of whom are running for the U.S. House and Senate.

The suit also asked Judge Kathy Seeley to remove the party from the ballot, if she agrees that the signatures in question are not valid. The Montana Democratic Party and three of its supporters filed suit earlier this month, asking Seeley to invalidate at least 180 nomination signatures.

If the judge agrees, the Green Party will fall short of the required minimum number of signatures in at least 34 state House districts. The hearing on the case began Tuesday afternoon.