Why do the PACs for Carly Fiorina (Ted's new VP) and Liz Mair (Melania photo in Utah) share the same P.O. Box in Virginia?

And how about that very unusual $500,000 transfer from Ted's PAC to Carly's PAC in June 2015? Did that somehow trickle over to Liz Mair's PAC to finance the UTAH operation (March 2016)?

h/t CowgerNation

screenshot this morning

screenshot this morning