The Affordable Care Act , commonly known as Obamacare, should be repealed and replaced, but only after Congress “rescues” the 11 million Americans who currently buy health insurance on the Obamacare exchanges, Senate Health, Education, Labor & Pensions Committee Chairman Lamar Alexander said in a speech on the Senate floor on Tuesday. President-elect Donald Trump and House Speaker Paul Ryan have both said that Obamacare should be repealed and replaced ” simultaneously ” or ” concurrently “.