Proof they cheated is already evident. The question now is did they cheat enough to win.
Yes, they likely cheated, but not in enough numbers so as to flip election results in 3 - 4 states, which is what Trump would have to do to win. And as for the charge leveled at Dominion, or Dominion software, the nature and result of the Georgia hand count has put that concern to rest for me.
It is time for Trump to concede, cooperate with the transition, get the task done down in Georgia and, if he wants, proclaim that like MacArthur he will return. The American Project is weakened when there is a pattern of one party refusing to accept the results of a free and, yes, fair election. This fair election has returned Republicans and Republican legislatures to power, we will have the upper hand in census redistricting, and the plight of blue states is confirmed by the likelihood that both California and New York will lose seats in the House.
It is time for Trump to act like an American, and do what Reagan would have done. Not to demand that two wrongs make a right.
Moreover, there are constructive things, for conservatives, that he can do in the time he has left, if he focuses. He can do, for example, what Mnuchin just did this weak, in relinquishing authority to spend unspent coronavirus money and federal assistance as Congress intended, on December 31, and let a new Congress appropriate new aid if it wants. Now Trump should order that the money - some $300 billion, I believe - be applied to reduce the deficit. Let Biden expend his political capital to unwind it.