'He's not delivering': Ex-GOP strategist reveals data that put Trump's polls in the toilet

Voters are already souring on President Donald Trump's economic performance, former GOP strategist Tim Miller told MSNBC's Ari Melber on Thursday's edition of "The Beat" — because he hasn't kept his most important promises.

All of this is entirely on top of the headache Republicans have created for themselves by cutting $1 trillion from Medicaid in their tax cut megabill, he added — something even Republicans knew would be a massive political liability.

"The big tell on this is that...