What it is, is chronic psychological projection.
They accuse their opponents of what they themselves are doing, would like to do, plan on doing, have done, or of mistakes they themselves make.
How many TIMES do we have to see the Democrats invoke the Ku Klux Klan...THEIR militant anti-Reconstruction arm. How many times do we have to hear about SLAVERY...which the Republican Party originally was founded to ABOLISH. It was the first Abolitionist party to gain widespread appeal.
And here, too. What they accused BOOSH!!! of, they themselves later did. What they accuse Trump, the former-Democrat apostate, of...is what THEIR hero did and does and keeps on doing.