Republican victory in Wisconsin Senate creates GOP supermajority and impeachment power.

Republican Dan Knodl has won the special election for Wisconsin’s 8th Senate District, securing a two-thirds GOP majority in the chamber that allows the party to impeach state office holders. With Knodl's victory, Republicans now hold 22 votes in the 33-seat state Senate. A two-thirds vote is needed to override a governor’s veto, though Republicans are two seats short of a supermajority in the state Assembly.