https://www.vox.com/the-big-idea/2018/6/8/17442238/trump-aca-obamacare-texas-department-of-justice-rule-of-law
"The laws that Congress passes and that presidents sign are the laws of the land. They aren’t negotiable; they’re not up for further debate. If the Justice Department can just throw in the towel whenever a law is challenged in court, it can effectively pick and choose which laws should remain on the books. That’s a flagrant violation of the president’s constitutional duty to take care that the laws are faithfully executed."
