Democrats Terrified of Rubio?

Democrats must be getting very nervous about the prospect of running against Marco Rubio, because yesterday the DNC released this hit ad:

Ask yourself this question: Why would you put out an ad like this about the candidate of the other party this early in the primary cycle? Wouldn’t you want to hold your fire with negative attacks until later? It seems like a “tell” of the candidate you least want to run against.

P.S. Here’s the Washington Post on why the Rubio credit card “scandal” is a non-scandal. Conclusion:

We’ll be keeping an eye on this issue but based on the information released so far, a mountain’s been made out of molehill,  by the media and Rubio’s opponents.