Christie might have to resign as governor in order to run for president

[Mr. Morden]

This has been alluded to here before, but here's the most in depth explanation I've seen:

You must be logged in to read this quote.

These are federal rules, and nominally effect any sitting governor who wants to run for federal office.  As the column explains, these rules restricted Perry's fundraising somewhat in 2012.  However, the broad appointment powers of New Jersey governors make it more difficult for them than most other sitting governors.  Also, New Jersey has its own "pay to play" rules on top of the federal rules, that would make it impossible for Christie to raise money from the financial sector without resigning.

Read the full thing here: http://www.salon.com/2013/07/22/christie_may_be_forced_to_quit_as_governor/

[Mr. Morden]

Can't these corporate people just give to a Christie PAC instead?

They could.  Though of course, Christie's people are hoping they can give to both.

I mean, yeah, it's not impossible for Christie to run and forego that Wall Street money for his own campaign, and hope that the Super PACs cover it....but it's less than ideal.  We'll just have to see how it goes.  Maybe he'll try to hold on as governor during the primary campaign, and then resign if he wins the nomination (a la Bob Dole).

Other governors will face similar problems....like Cuomo.