In the past few weeks, the "Operation Fast and Furious" scandal has not only stirred up partisan bickering, but also turned the spotlight on a controversial presidential power: executive privilege. The doctrine of executive privilege has a background in the Watergate scandal.

In a 5-4 decision, the Supreme Court ruled on the side of three corporations, reversing Montana's 1912 limit on corporate campaign spending.  Today's decision not only strengthens the 2010 Citizens United decision, but also affirms that it applies to the state of Montana.