Donald Trump will certainly not lie in state, like John McCain and Ted Kennedy. Even if he somehow saves his presidency and reputation over the next 2 or 6 years, or if somehow he ends up being lionized like Reagan (which will not happen), he won't be honored by lying in state.
Trump's funeral will likely be at a private club like Mar'a'lago, much like all of his activities are. It'll likely be attended by his family, friends, some celebrities, and other irrelevant people. Maybe some blowhards like Sesbastian Gorka or someone equally unimportant will deliver a political eulogy: But I'll eat my hat if a former vice president (like Joe Biden) speaks at the funeral. I'll eat a spoonful of salt if it's well attended by public figures from both sides of the aisle, or even his own political party.
Trump, deceased, will probably not even enjoy the honors that Richard Nixon received. Nixon died some 20 years after he fell from grace, and he too was a divisive, vindictive person. But, Nixon had a different public face than private one. Even in the midst of scandal, Nixon wasn't publicly disgusting like Trump is: He was respectful to his opponents, did not discredit war heroes, while he was likely a megalomaniac, he had a sense of public persona where he knew it was uncouth to look like a megalomaniac. Trump has none of that. He's squarely focused on himself. Trump has all of the flaws of Nixon, and none of the public grace or skill. At Nixon's funeral, every living president and their wive's attended, it was respectful. Nobody lionized Nixon like McCain, and with good reason he didn't deserve it, but all sitting politicians were at least respectful of his passing and tried to focus on his contributions to the Republic (which, especially by 1994, Nixon can be remembered for forging a relationship with China, which ultimate triangulated the end of the Vietnam War and, eventually, the fall of the Soviet Union).
Trump, at this point in his presidency, deserves nothing. He's a disgrace of a man, and a disgrace of a president.
