RUSSIAN COLLUSION: When in doubt, use this glorified conspiracy theory to delegitimize Donald Jesus Trump, his cabinet, his presidency, and the very reason he got elected to be president in the first place. You can freely ignore the fact that literally no direct (or, to be honest, sufficiently authentic circumstantial) evidence has been found to implicate Trump in collusion, after a year and a half of investigation.
MEDIA SAYS SO: It is well established that Donald Trump is a racist, sexist, misogynistic, xenophobic, homophobic, white supremacist bigot. All of this you can belch out vomit out screech out shit out boldly assert as factual with no genuine evidence to support it because the mainstream media says so. And, as we all know, it is simply impossible the mainstream media to lie, quote mine, or engage in any form of duplicity or deceit whatsoever.
FAR-RIGHT / ALT-RIGHT: Whenever anyone criticizes the media, for any reason, you can be absolutely certain that they are politically far-right or alt-right. This is not because the current media landscape sees anyone to the right of Karl Marx as "far-right", nor do they label anyone that publicly disagrees with them as basically Nazis, but that anybody who dares to question the objective truth of media reporting must be a white supremacist. Because reasons. Members of this distinguished group include such diverse personalities as Donald Trump, Elon Musk, Kanye Kardashian-West, Jordan Peterson, Tommy Robinson, and more.
ANTIFA: Bash the Fash! What better way to combat fascism than with domestic terrorism! You can assault people for having differing political opinions, actively attempt to suppress the public expression of opposing viewpoints, and attempt to tear down democratic society as we know it, like...a...fascist... Also, whenever significant opposition is mounted against you, you can always cry that you're being oppressed. This card is especially effective against Donald Trump, who's the reincarnation of Adolf Hitler anyway.
SUCCESS STORY SPIN-DOCTORING: Whenever it seems that Trump has done something good, whether arguably or unequivocally, you must spin it in a way that makes the good thing bad. For example, if Trump has managed to successfully use diplomacy on a dictator to get him to denuclearize his nation, you spin this into Trump being duped by said dictator, or Trump being friendly with said dictator, or Trump pissing on the graves of American soldiers by simply talking to said dictator. You can even outright lie about the success story, to present it as a failure story in disguise.