Pennsylvania has filed its response to Texas' Supreme Court lawsuit. Texas, it says "added its voice to the cacophony of bogus claims. Texas seeks to invalidate elections in four states for yielding results with which it disagrees."
Pennsylvania: "What Texas is doing in this proceeding is to ask this Court to reconsider a mass of baseless claims about problems with the election that have already been considered, and rejected, by this Court and other courts."
Wow: Pennsylvania says Texas' request to invalidate its election is a "seditious abuse of the judicial process" and urges the court to "send a clear and unmistakable signal that such abuse must never be replicated."
Pennsylvania's response is here: https://www.supremecourt.gov/DocketPDF/22/22O155/163367/20201210142206254_Pennsylvania%20Opp%20to%20Bill%20of%20Complaint%20v.FINAL.pdf