The White House handled this mosquito in about the worst possible way. The president could have declined to call on him. Having called on him and been offended by his tone, the president could have refused to take the bait, saying “You might want to run for office yourself. In the meantime, I’ll call on someone who wants to ask a question, not stage a debate.”
Instead, in a fit of petulance, the White House revoked Acosta’s press pass. This is Trump not understanding the import of the office he holds. When Trump the businessman took swipes at press coverage he disliked, it was pique. When the president of the United States does it, it smacks of authoritarianism. Admittedly, the press corps are a high-strung bunch, but this White House flirts with intimidation, calling down contempt for them at rallies, deriding them as the “enemy of the people” (which is an echo of Stalin, whether Trump recognizes it or not), threatening to sic the FTC on the owner of the Washington Post, and elevating the likes of Gateway Pundit.