https://meta.wikimedia.org/wiki/Knowledge_Equity_Fund#Grant_...
This said, I agree with the premise that the Wikimedia Foundation is partisan. Its General Counsel came from the Tides Foundation, which is as partisan as any of its equivalents on the right, and its Chief Advancement Officer, responsible for fundraising and strategic partnerships, had a long career in political philanthropy before joining Wikimedia:
https://sfgov.org/civilservice/sites/default/files/Documents...
https://www.sfweekly.com/news/greening-the-left/
https://www.sfgate.com/politics/article/COMMUNITY-Growing-ch...
Ugh, what?