I imagine some percentage of “disapprove” includes those who feel Trump hasn’t been sufficiently Trumpian. The remainder is mostly those who will still hate him even he were to cure cancer, end poverty, and beat swords into plowshares. So if he wants to be more popular, he need only be himself.
Voters showing appreciation for his draining the swamp. Comey was a YUGE swamp creature.
Democrats, the Illuminati, Liberaltoonians and soap box conservatives.