On November 19, Pennsylvania State Senator John Yudichak said he has changed his registration from Democratic to independent. He has been in the legislature since 1998. He is only 49 years old, so presumably he will run for re-election when his term is up in 2022. See this story.

It is possible that he waited to change his registration until the state repealed its straight-ticket device. The bill deleting the device was signed on October 31, 2019. Thanks to Ballotpedia for this news.