WASHINGTON (AP) — From the South to the heartland, cracks are appearing in the once-solid wall of Republican resistance to President Barack Obama's health care law.

Ahead of a federal deadline Friday for states to declare their intentions, Associated Press reporters interviewed governors and state officials around the country, finding surprising openness to the changes in some cases. Opposition persists in others, and there is a widespread, urgent desire for answers on key unresolved details.

The law that Republicans have derided as "Obamacare" was devised in Washington, but it's in the states that Americans will find out if it works, delivering promised coverage to more than 30 million uninsured people.