I think it follows from this:
"the person having the greatest number of votes for President, shall be the President, if such number be a majority of the whole number of electors appointed;"
My question to anyone:
If an objection is raised, a vote is thrown out and not counted. Does that lower the total count of the electors appointed? If so then 269 is the majority, not 270.
If the Democrats raise objections to most or all 305 Trump votes just to be pains in the azz, January 6th count take some time.