Minnesota’s top court ruled that Republicans had overstepped their authority by conducting business in the Legislature even as Democrats boycotted the session.

Democrats in the Minnesota House who have boycotted daily sessions are using tactics that lawmakers elsewhere have tried dozens of times in seeking to thwart their opponents.

The justices, in a written ruling released Friday afternoon, agreed with House Democratic leaders and Secretary of State Steve Simon who argued that a quorum in the House was 68 members under the state constitution, not the 67 that Republicans claimed. The Supreme Court cited an article in the Minnesota Constitution as part of their reasoning.