Well, if you read Roberts’ comments, I don’t think he would characterize it as a conservative decision. (Not sure what you meant by that word).

I’m pretty sure he would say that in forming his opinion the last thing he considered was the possible impact on Democrats or Republicans.

And I hope that’s true.

One example he cited was that under current law, you couldn’t even distribute a politically-oriented pamphlet if it had funding by a corporation (even a non-profit corporation).

In a sense, that really *does* limit speech – the speech of the corporation’s officers and even by extension its shareholders.