https://thedailybanter.com/2018/04/trump-accidentally-confesses-to-obstruction-of-justice/
"Trump appears to believe that by virtue of him saying or believing something, it makes it so. In his mind, firing James Comey to prevent him investigating him over his connections to Russia wasn't obstruction of justice, but merely 'fighting back'. The distinction may have no legal basis, but then Trump isn't bothered about inconvenient technicalities. Unfortunately for him, the law isn't applied subjectively -- just because you don't think you did something wrong, doesn't mean you didn't. And as the Mueller investigation gets ever closer to Trump and his inner circle, he will find this out the hard way."