Seven of the nine Justices on the State of Washington State Supreme Court are women.
It’s not because they are the most qualified. It’s because women will vote for women Justices just because they are women.
It’s also significant to note that most Justices who retire do so ,so the Governor came appoint their replacement. It’s also know that running against sitting Justice or Judge in a lower court is very much frowned upon and can affect the challengers clients.