Proper follow-up question:
Do you know anyone who either didn't vote for Trump or voted for him with no enthusiasm last time who can't wait to vote for him this time?
Most people I have posed those question to have said that the second group is much larger than the first (with the first often having "no one" as the answer).
Not sure that matters then. An unenthusiastic vote for Trump counts the same as an enthusiastic vote. He’s not adding to his total.