Remember when Republicans vowed to be the party to protect pre-existing condition coverage?

After the president and Republicans repeatedly promised to protect people with pre-existing conditions, the Trump administration on Monday evening said it supports a federal judge’s ruling that the Affordable Care Act (ACA) is unconstitutional, adding that it will seek to repeal the sweeping health care law in its entirety.

The Justice Department filed a brief letter in the conservative U.S. Court of Appeals for the Fifth Circuit telling the court that it agrees with Judge Reed O’C...