Is the Mississippi Democratic Party hypocritical on the Second Amendment?

The Mississippi Democratic Party suggests that Senator Thad Cochran is a hypocrite for opposing Sonia Sotomayor's nomination to the U.S. Supreme Court.

It brings to mind Senator Roger Wicker's reason for opposing Sotomayor:

"In refusing to confirm that the Second Amendment is a fundamental right that applies to all 50 states, and thus, all Americans, Judge Sotomayor shows an alarming hostility toward law-abiding gun owners across the country. This is a view that is certainly out of the mainstream in Mississippi and, I believe, across the rest of the nation."

Wicker is correct, not only is Sotomayor outside the mainstream in Mississippi, she is even outside the mainstream of the Mississippi Democratic Party, as we quote from its official party platform:

We believe in the affirmation of the Second Amendment as an individual right.

So the Mississippi Democratic Party is supporting a nominee who rejects its own platform on the Second Amendment. Who is the hypocrite now?