Republican Dan Knodl's win in Wisconsin Senate race secures GOP supermajority and impeachment power.

Wisconsin Republicans won a supermajority in the state senate, giving them the necessary votes to impeach statewide officials, including the state’s Democratic governor and potentially state supreme court justices. The new liberal majority in the state supreme court could strike down the state’s legislative districts, which were drawn by Republicans and give them a virtually impenetrable majority in the legislature. It is not clear whether state lawmakers will move forward with impeachment, and who qualifies for impeachment is not defined in the constitution.