Prosecutorial Discretion: One of these three is not like the other...

Menendez

Corzine

D'Souza

Are politics behind the Obama Administration selective enforcement of laws?
Funny how certain people never get prosecuted. Why is that?

Bob Menendez is accused of getting support and access to under aged Dominican prostitutes and then pushing legislation for that same donor.

Dinesh D'Souza is accused of funneling $20,000 to a college friend to help her underfunded campaign (which she lost badly).  Of the three, D'Souza's alleged crimes are by far the least serious (and truly victim-less), yet the Obama Administration is going after him for felonies and jail time.

Jon Corzine lost hundreds of millions for investors and then likely perjured himself in testifying about the causes of that loss.  Corzine was also an Obama campaign bundler in the 2012 election.

Eric Holder

So why are Barack Obama and Eric Holder favoring Menendez and Corzine, but going hammer and tongs against D'Souza?

Update:
Alan Dershowitz: Obama is selectively prosecuting D'Souza