That’s what SCOTUSblog is reporting about Citizens United v. FEC; Austin v. Michigan Chamber of Commerce (1990), has been overruled. The majority seems to consist of the 5 conservatives, and the dissent of the 4 liberals. There is also a separate debate about disclosure requirements, which were apparently upheld. I have child duties until noon Eastern, but I hope to read the (long) opinions shortly afterwards, and might have some further thoughts.