President Trump threatens GOP lawmakers into supporting the American Health Care Act, but some aren't ready to give the proposal their approval.

The House of Representatives is expected to vote on the health bill as soon as Thursday -- the seven-year anniversary of the Affordable Care Acts signing by Barack Obama. Yet its not clear that there are enough votes to pass the bill.

Some opponents of the American Health Care Act have been demanded a simple ACA repeal bill, which would be followed by a more sweeping replacement bill.

Investors were looking to Trump last week to provide detail on the plan to repeal and replace the Affordable Care Act in his speech to Congress, but instead he spoke in broad terms about ensuring access to coverage, lowering costs and providing better care.

Conservative Senator Rand Paul of Kentucky also blasted GOP leaders repeal and replace plan for the Affordable Care Act, calling it 'Obamacare Lite.'

Its unclear when Democrats, or the public, will get a look at the GOP bill to replace the Affordable Care Act.

Representative Mark Walker said he doesn't support the GOP's current plan for health care reform.

New details of the ACA replacement plan are beginning to emerge, described by lawmakers and their aides.