On Thursday, the U.S. Secret Service announced that they would investigate Anthony Senecal, Donald Trump’s longtime butler and in-house “historian” who ranted that President Obama should be hanged for “treason!!!”

“The U.S. Secret Service is aware of this matter and will conduct the appropriate investigation,” Secret Service spokesman Robert Hoback emailed The Daily Beast. (Threatening the life of the president is a federal crime.)

Along with thinking Obama should be executed, Senecal thinks Hillary Clinton is a “LYING DECEIVING C**T !!!!!!!” and that Ferguson, Missouri, should be “carpet bombed.” His Facebook page also shows support for Confederate imagery, and that he often uses the term “negroes.” He also called on his boss (and prefered presidential candidate) to “arrest and charge Beyoncé and Jay Z for ‘Providing Material Support for Terrorism.’”

Senecal and the Trump campaign did not immediately respond to The Daily Beast’s requests for comment.

—Asawin Suebsaeng