Call to Action: On Wednesday POTUS Donald Trump did something that seemingly came out of nowhere: He took to Twitter to publicly call for his attorney general, Jeff Sessions, to end the “witch hunt” investigation by special counsel Robert Mueller. In a series of tweets, Trump lambasted his AG — nothing new there — while outlining his ‘case’ for ending the probe. So why did the president chose today to make these allegations and to publicly call on Jeff Sessions to shut down the Mueller probe — when POTUS himself can do it?