13. Mathematically it would need 67% of the uncounted remaining votes to win.
E.g., half of the remaining votes, plus an additional 558,833 votes to close the existing gap and push it over the top.
Considering that it only garnered 47% of the vote counted already, a 20% jump in its polling numbers, among only the remaining uncounted ballots, would be nothing short of a miracle. I understand that some don't want to give up, but there's a point at which you just have to admit that you've lost, figure out where it went wrong, and start planning for your next try.