so what happens if they don’t complete their recounts?
I think the states that have not completed their vote count and certification lose their electoral votes.
If the loss of electoral drops Trumps EV vote count below 270 the election of the president goes to the House of Representatives.
There the house makes a selection from the three candidates with the highest EV count. The representatives of each state acting as a group gets one vote in the House election to elect the new president.
In like manner the election of the vice president goes to the senate.
With all the RINOs, Never Trumpers and Hillary lovers among the republicans in the House and Senate there is no telling what the outcome would be.