Bernie, I love you bro, but newly minted Supreme Court justices can’t just decide sua sponte to overturn Citizens United. It depends on cases coming through the system to the court. And there are no guarantees that a Citizen’s United case will be one of the first decisions for a new Justice.
“Willingness to overturn Citizens United will be a litmus test for any Supreme Court nominee of mine." That actually makes sense and fits in a tweet.