President Donald Trump is accusing special counsel Robert Mueller's investigative team of "MEDDLING" in the upcoming midterm elections and blames Democrats for "Collusion."

Mueller is leading the probe into whether Russia interfered in the 2016 presidential election with help from Trump campaign aides. So far, four Trump associates have been charged in Mueller's investigation; three have pleaded guilty to lying to the authorities.

Trump has repeatedly referred to Mueller's team as "13 angry Democrats," although Mueller is a Republican. Mueller was appointed by Trump's deputy attorney general, Rod Rosenstein.