^ no it is actually that everyone who disagrees with Trump is bad for America, and so is called "left". So "left" is bad and because it is, Trump (at the right) is automatically good.
Neither Biden nor Sanders are really left from a neutral point of view (in european eyes they are both on the political right), but from Trump's view they are left.
Not that Trump really thinks that they are left, or that they are bad, or even more bad than him (hardly believable, even for Trump), but he has to portray himself as "better", so he gets more votes when he bedevils the "left". Or what some people think that is. Not that he has any own idea or stance about politics, he could run for the democrats or Nazis or the martian abortion party, he would just adjust his slogans to get more votes.
So he says Biden and Sanders are "communists". Which is of course a lie. It is the new think that when you are enabled to pay your bills and have your kids raised with a reasonable education by being paid a fair loan, and expect reasonable health care, and are not a born millionaire, you are automatically "left". And so you are bad.
Easy.
