Supreme Court Justice Ruth Bader Ginsburg has been keeping busy since her cancer surgery in late December: She has returned to the bench to hear oral arguments, authored opinions and even made a few public appearances outside the courtroom.

But conspiracy theorists aren’t buying it, with some arguing that the 86-year-old justice has been dead for weeks and that Democrats are covering it up to stop President Trump from filling her seat.

The Supreme Court has been bombarded with Twitter users demanding evidence that Ginsburg is still alive, while some online videos allege her public appearances have been manufactured. There are also claims that audio of her from recent Supreme Court oral arguments has been doctored and is nothing more than phrases pieced together from earlier recordings of her remarks.

Read more at The Hill.