The real question is this: Why focus on Trump now? Because they can't control him. Every hit piece is proof of one thing: the system fears him.
Any left wing TV channel, newspaper or media whoever keep trying to dump him down. They've tried "almost" everything but he still clearly won the election and people support him.
They also hate him because he always makes fun of the media.
He's a bigot, he hates women, bad tariffs, prices will zoom up, unemployment will zoom up, stock market will tank etc.... you name it. People just focus on what they think will help them. The majority of people dont care about Trump's personal life or if he makes women jokes in the past or occasionally swears in his big rallies. That's his personality and people are fine with it. Heck, the guy used to do David Letterman talk shows back in the day promoting his skyscrapers and casinos and he did The Apprentice reality show firing people. If everyone hated it he wouldnt be president or even qualify to be nominated. Oh ya, he also used to do pervy USA pageants too.
Getting back to "almost", there's one major thing any left leaning person/organization hasnt tried yet to defeat him..... just promote good policies to the public which are better than Trump's. If all of Trump's laws he pushes are so shitty, then it should be a total cakewalk to create new or promote current policies which are much better which everyone prefers over Trump's.
But they cant figure out anything good, so they just focus on Trump bashing. They've painted themselves into a corner because if they try to promote some moderate plans, wacky liberal voters will hate them as traitors because they'd see that as being more like Trump. So that's why all the left leaning content and commentators have to stick to being hard left and just go with it.
The more Trump pushes traditional boring stuff like low taxes, get more domestic jobs, get crime down etc.... (these are the types of boring topics politicians in every country probably talk about for 100 years), Trump corners the market on those popular topics, so it leaves no big topics left for liberals to convince the masses they are better.