You have to beat the king to be the king, according to an adage. Donald Trump’s political
rivals are taking that to heart as they plot their strategies to split Mr. Trump from his adoring primary supporters and capture the 2024 Republican presidential nomination. Mr. Trump sneaked up on the party in many ways back in 2016 when his rivals and much of the media treated his campaign as a sideshow until he started winning primaries and claimed the nomination. Mr. Trump won’t be sneaking up on anyone this time.