DFL Gov. Tim Walz called a special election for a vacant House seat in the Roseville area too early and must choose a later date, the state Supreme Court ruled Friday in a decision that will extend Republicans’ advantage in a power struggle with Democrats in the House by granting them another month with a one-seat majority.

The Supreme Court on Friday cancelled the special election for a metro House race later this month, finding Gov. Tim Walz set the date before state law requires.

By Matt Sepic and Clay Masters, Minnesota Public Radio News BThe state Supreme Court Friday sided with Republicans in a lawsuit over the timing of a special election that could determine control of the Minnesota House,