WI never had a Republican majority in the state legislature up until 2011, and Doyle was the Rat Governor from 2002 - 2010.
Yes it has. The GOP has generally been the dominant party in WI since its creation in the 1850s. The Dems have had the majority on occasion, of course (it dominated from the early ‘70s to 1995, the only time since the 1850s that it won more than 2 elections in a row in the legislature). After the 2 decade period of Dem dominance, the GOP had the Assembly from 1995 until 2009 and took it back again in 2011. In the Senate, it was the mostly the same: Dem from 1975-1993; GOP from 1993-96; 1998-99; 2003-07 and since 2011.
Contrast it with MD, which has generally had uncontested Dem majorities since before the Civil War, except on two or three separate and brief occasions, the last being over 90 years ago.
As for Diamond Jim Doyle, since 1962, only he and Patrick Lucey (in 1974) were the sole Democrats to win reelection. In 50 years, the GOP has controlled the Governorship for 30 years to the Democrats’ 20.
Maryland, conversely, since 1867, the GOP has only held the Governorship for 26 years out of almost 150.