I use leftist sources in my memes all of the time; because I use what visually works and because doing so tends to drive leftists bonkers. A two-for, in other words.
IN REGARDS TO TRUMP, THE LEFTIST-CONTROLLED COLORADO SUPREME COURT DECIDED TO SENTENCE FIRST AND SKIP THE ACTUAL TRIAL. BUT IN REGARDS TO THE PLAGIARIZING HARVARD PRESIDENT THE LEFTISTS INVESTIGATING HER DECLARED HER INNOCENT BEFORE THE RESULTS OF THE INVESTIGATION WERE COMPLETED. I DON'T KNOW ABOUT YOU; BUT I AM SENSING A GENERAL PATTERN HERE.