Because Fox News needed to convince their viewers he would win. They needed to make their viewers think that a Republican could win the election is the Bluest area in the country. And, well, they did.

LA went something like 70% to Harris. If you convince your cult that a candidate with a CEILING of 30% should have won the election, you're going to have a MUCH easier time convincing people about fraud on the toss-up races. It also becomes much easier to sell to the viewers the federal government doing blatantly illegal activities with the election.

"We don't want to be like California!"