White House aides of President Donald Trump only present the president with positive polls in order to best manage his moods and keep him focused according to Politico . It's been reported that the President is often surly and abusive to his White House staff, even its most senior members. It would not be out of character for him to fire someone for delivering bad news or doing their job (Trump is known for being arbitrary and capricious). Reports have suggested that keeping the President upbeat makes him easier to manage and more likely to be agreeable to reasonable advice (instead of let's say, arbitrarily starting a nuclear war based on a personality conflict).
Aides in the White House often show Trump polls designed to make him feel good, according to aides and advisers. Usually they’re the ones that focus just on voters who cast ballots for him in 2016 or are potential Trump supporters —Trump’s base—but occasionally include public polls like Rasmussen, depending on what the numbers say.
Aides of the President claim that the polls being shown to him are 'delusional'.
Yet several senior officials said they don’t trust the internal polls because they are “delusional” or “just not accurate,” in the words of two officials. The numbers Trump are shown are almost always higher than his public polling numbers. “I wouldn’t trust our polling on that,” one senior aide said, after ticking off numbers on health care earlier this year.