This is a list of Minority Leaders of the Minnesota Senate
In 1913, Minnesota legislators began to be elected on nonpartisan ballots. Nonpartisanship also was an historical accident that occurred in the 1913 session when a bill to provide for no party elections of judges and city and county officers was amended to include the Legislature in the belief that it would kill the bill. Legislators ran and caucused as "Liberals" or "Conservatives" roughly equivalent in most years to Democratic-Farmer-Labor and Republican, respectively. The law was changed in 1973, in 1976, Senate members again ran with party designation.
Minnesota Legislative Reference Library