"President Donald Trump's path to 270 is so difficult, the more likely goal for his team is to keep enough states from certifying the election results so Joe Biden falls short of 270 electoral votes Dec. 14."
I believe there's an error in understanding the procedure here.
Let's use Pennsylvania for example. The state has 20 electoral votes.
If all 50 states present electors to the Electoral College, the required majority "to win" is 270 -- 269 + 1.
BUT... if Pennsylvania sends no electors, the total number of electors present now becomes only 518. Thus, "a majority vote" of those present becomes 260 -- 259 + 1.
That's how I believe the procedure is supposed to go.