President Donald Trump has leveled an apparent threat against California Congresswoman Maxine Waters (D) after the lawmaker spearheaded a campaign to make Cabinet members feel unwelcome in public spaces as a form of resistance. “Congresswoman Maxine Waters, an extraordinarily low IQ person, has become, together with Nancy Pelosi, the Face of the Democrat Party,” Trump tweeted Monday. “She has just called for harm to supporters, of which there are many, of the Make America Great Again movement. Be careful what you wish for Max!”