It is hard to think logically about emotionally charged issues, and even harder to make a logical argument for something you believe to be true that is not a trivial fact. To keep yourself honest and to avoid being deceived by others, I recommend reading An illustrated book of Bad Arguments by Ali Almossawi. It is a book about methods of arguing that are logically invalid. Once you read it you will recognize people trying to persuade you with bad logic everywhere - from cable news, to politicians, to religious leaders, to friends and family. My hope is that it will help you to think more critically about everything, and reject logically invalid arguments. I will do my best on this site to avoid bad arguments.
I believe in the concept of Truth, however we must resist the urge to think about all things in black and white, true and false terms. There are truths that are trivial facts, and there are truths about high level concepts. I firmly believe in them both. For example, a trivial truth is that the Earth is a sphere (roughly). A high level truth is that Donald Trump lacks the skills, knowledge, and ethics of previous U.S. Presidents. Acknowledging the existence of truth does not contradict the idea that we should not analyze everything as black and white. I've learned throughout my life that most things are grey. I can acknowledge some strengths Donald Trump brings to the office.