But he refused to sign her opinion.
The three other dissenters signed Justice Breyer's opinion, which he took the unusual step of reading from the bench this morning.
Justice Thomas signed Justice Scalia's opinion and filed his own dissent.
No one on Justice Scalia's side signed his opinion; some questioned the wisdom of publishing it and further revealing the court's internal conflict.
The other three dissenters signed Justice Thomas's opinion.
No other judges signed Wilson's opinion.
Justice Breyer did not even have the full support of the justices who signed his opinion.
In six of those cases, he signed another justice's dissenting opinion.
Nor did he sign Justice Anthony Kennedy's opinion, which was also critical of the Buckley framework.
Two members of the majority refused to sign Justice Kennedy's opinion on the ground that the standard it adopted is too open-ended.
