They're pretty thin. Build housing. Build transit. Raise the minimum wage. There's nothing wrong with those, but he's pretty late to the party.

So I'd say this isn't an ad hominem. I'm not trying to attack the argument by attacking the man. I'm just attacking the man. Florida in particular isn't credible because a decade ago he was boosting municipal gold-digging -- chasing after high-flying tech companies and ignoring bread and butter issues like the ones he's lately rediscovered.