Vice President JD Vance, Elon Musk and others in the Trump administration are openly challenging the centuries-old power of the nation’s judiciary, foreshadowing a possible constitutional breakdown of American government.It’s not simply that the new administration has flouted a raft of federal statutes and prompted a flood of legal challenges. It’s that some of Donald Trump’s top advisers have cast doubt on whether rulings on those lawsuits would even constrain the president.There are signs that some judges’ orders have been disregarded. On Monday, a federal judge in Rhode Island found that the administration has violated the “plain text” of his...