The states are required by the Constitution to cast their electoral votes by Dec 14th. If there are contested states and neither candidate has 270 electoral votes, the Constitution calls for a vote of the House legislature, one vote per state delegation, on January 5th when they reconvene. If all the Republican states vote for Trump, he wins. If 4 defect, Biden wins. (26 republican legislatures vs 22 Democrat)
Trump is also well aware of this too as he mentioned it in a previous rally.
http://www.youtube.com/watch?v=LCW45stUbe8&t=47m55s
Skip to 47:55 on the video to see
He has already won. The dems is just throwing a tempertantrum like expected, who gives a shit about their feelings. What are you waiting for? For the dems to accept they lost? They will never do that, not even on dec 14. They dont give a shit about rules and laws only about grabbing power by any means. So you might as well ignore them sit back and enjoy the tears.