Presumptive Republican nominee Donald Trump will announce his choice for a running mate on Friday at 11a.m. This, of course, gives us one last chance to wildly speculate about who it might be.

Maxim Lott and John Stossel’s betting odds put Indiana Gov. Mike Pence as the top pick at around 60 percent at the time of this writing (the highest percentage any potential veep pick gets on either side of the aisle). The odds are updated every five minutes, and Pence chance’s have risen and fallen in the past day, as Trump dined with him, campaigned with him and met with him at his home in the Hoosier State.