President Donald Trump said that in the next two weeks he'd be working on an executive order to require health insurance companies to cover those with preexisting conditions. This requirement — that insurers cover those with pre-existing conditions — is already law, and it has been since the 2010 passage of the Affordable Care Act, also known as Obamacare. Trump, since taking office in 2017, has sought to repeal or undermine President Barack Obama's signature law.