When you have absolutely no ethical boundaries:
Trump opened the Trump International Hotel, just blocks from the White House, shortly before he was elected in November 2016. Unlike past presidents, he has retained ownership of numerous business interests, including the hotel, while serving as president.
Since his election, the hotel has become a favored lodging and event space for some foreign and state officials visiting the U.S. capital. The lawsuit alleges that, in failing to disengage from the hotel, Trump has made himself vulnerable to inducements by foreign governments seeking to curry favor, violating the Constitution.
Even the lowliest bureaucrat in the Federal government ranks has to be wary of receiving gifts from individuals, lest they be raked over the coals for an ethical misstep. But Trump? He won't give you the time of day unless there's something in it for him. We all remember his declarations in 2016/2017 that he would sever himself from the family businesses, but he's done the exact opposite. Like doubling the annual membership fee at Mar-A-Lago to over $200,000 right after he was elected, then turning it into a shadow Camp David. But the particular case we're looking at today deals with Trump's DC hotel, and a look at the initial subpoenas is an eye-opener: