Trump has told something like 20,000 lies while in office, according to the WaPo. Relatively few of these were intended to deceive anyone; more typically, he does it either to pump himself up or to create loyalty tests for the people around him. How does this translate to the campaign?
He will try to use lies (e.g., on defunding the police) to redefine Biden to the American public. This, of course, requires deception. The problem is that no one outside of his base will believe his commercials. Given his record, why would they?
The bottom line is that lying only works if your word has credibility. No one has less credibility that the man on golf cart, except maybe Larry Kudlow.