RICARDO ALONSO-ZALDIVAR, Associated Press

WASHINGTON (AP) — A major new poll finds that President Barack Obama’s health care law has become a tale of two Americas.

States that fully embraced the law’s coverage expansion are experiencing a significant drop in the number of uninsured residents, according to the Gallup-Healthways Well-Being Index.

States whose leaders still object to so-called “Obamacare” are seeing much less change.

The survey, released Tuesday, found an overall drop of 4 percentage points in the share of uninsured residents for states accepting the law’s core provisions.

The drop was much smaller — 2.2 percentage points— in states that held back politically. Uninsured residents of those states still had access to a new federal insurance market.

Two southern states where the law found support led the nation in coverage gains. They were Arkansas and Kentucky.