President Obama's chief spokesman on Wednesday ripped the House Republicans’ long-awaited plan to replace ObamaCare, calling the proposal too little, too late.

“For six years now, Republicans have vowed to put an ObamaCare alternative on the floor of the Congress. And for six years now, they have broken that promise,” White House press secretary Josh Earnest told reporters.

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“The proposal they put forward today includes some more details, but the details they put forward today are wildly unpopular, which is why I suspect they will not receive a vote on the floor of the House of Representatives.”

Earnest said the plan contains recycled Republican ideas, such as partially privatizing Medicare, and fails to account for critical details, like how many people could lose insurance coverage and its effect on the federal budget.

He dubbed the plan a "political document" that's "not worthy" of consideration.

The plan, spearheaded by Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.), is designed to set up an election-year contrast with Democrats on healthcare.

The GOP proposal calls to repeal of ObamaCare and erase insurance mandates, penalties and subsidies that have been the target of conservatives’ ire.

It puts in place a new system that offers tax credits to help people purchase insurance plans.

It also rolls back Medicaid expansion under ObamaCare and restructures Medicare to permit seniors to buy private insurance plans with subsidies or vouchers.

Republican aides acknowledge the plan is missing some details, but they say it's designed to lay the groundwork for legislation that lawmakers would hash out after President Obama leaves office.

“The committees would litigate the specifics of those policies in 2017,” a GOP aide told The Hill.

— Peter Sullivan contributed.