No, it's because Trump really is that bad. He was a known liar, womanizer, conman, etc. even before taking office and has his since racked up over 23,000 cases of misleading falsehoods and/or outright lies, which have been documented in a searchable database by the Washington Post.
https://www.washingtonpost.com/graphics/politics/trump-claims-database/?itid=lk_inline_manual_2&tid=lk_inline_manual_2&tid=lk_inline_manual_3&tid=lk_inline_manual_4&tid=lk_inline_manual_2&tid=lk_inline_manual_2&itid=lk_inline_manual_2