So who will get the nod? Data from Google shared with The Washington Post shows who Americans seem to think it might be.
On the Republican side, the most commonly searched names joining "Trump" and "vice president" in American queries included Sen. Jeff Sessions (R-Ala.), former secretary of state Condoleezza Rice and former House speaker Newt Gingrich.
Gen. James Mattis was briefly mentioned as a possible stop-Trump candidate; that, like all stop-Trump efforts to date, came to nothing.
For the Democrats, the top three were Sens. Elizabeth Warren (D-Mass.), Bernie Sanders (unsuprisingly) and Secretary of Housing and Urban Development Julián Castro.
Setting aside Sanders who, for obvious reasons, has gotten a lot of attention over the past few months, Warren generates far more search interest than any of the other possible picks.
To some extent, those top picks also align with political betting markets.
But, again, no one really knows anything, save Clinton and Trump. The end result of this thing could be that Clinton picks Rice and Trump picks Trump — meaning Ivanka — but who knows? Maybe he'll pick himself.
The best way to be proven wrong over the past 12 months has been to try and predict affirmatively what would happen next in this campaign.