Per the Associated Press, via MSNBC:
The Supreme Court has ruled that corporations may spend freely to support or oppose candidates for president and Congress, easing decades-old limits on their participation in federal campaigns.
By a 5-4 vote, the court on Thursday overturned a 20-year-old ruling that said corporations can be prohibited from using money from their general treasuries to pay for their own campaign ads.
In the immortal words of one Porky Pig:

