GOP Supermajority

Can anyone please explain how the new GOP Supermajority can affect state governance? Here's a link from WKOW.

https://www.wkow.com/news/gop-lawmaker-wins-wis-senate-seat-creating-supermajority/article_8e2f850a-079f-5394-9fee-3abf7aae4a22.html