President Donald Trump remade the Republican Party in his own MAGA image. Will he now do the same to the conservative legal movement? During his first term, Trump benefited immeasurably from his association with Leonard Leo, the former Federalist Society official whose advice on judicial nominations helped Trump to transform the U.S. Supreme Court into a conservative legal juggernaut that eliminated the constitutional right to abortion, overturned affirmative action in higher education, and expanded the right to keep and bear arms. Such rulings will likely be remembered as Trump's most far-reaching accomplishments as president. Yet now, Trump is denouncing both...