Why do Republicans gerrymander more than Democrats?

Rethugicans are in control of legislative branches in all of the Top 10 gerrymandered states on this list.

https://rantt.com/the-top-10-most-gerrymandered-states-in-america/

Ridiculous. Even Wisconsin (my home state with GOP control) is gerrymandered. I can't wait to vote next month!!
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