amna: david boren retired in 2018 -- leaving the university after a sexual harrassment probe. ongdoing, and there were never any charges nor litigation. at the time his lawyer described boren as a dedicated public servant for more than 50 years. david boren was 83 years old. still to come on the news hour. we explore how elon musk came to hold so much power in the trump administration and a rising star of cuban music discusses blending genres and being a global ambassador for music. announcer: this is the pbs news hour from the david m rubenstein studio in washington and in the west from the walter cronkite school of journalism at arizona state university. geoff: president trump has tasked elon musk with an enormous job to search across , the federal government and root out inefficiencies and waste. but musk's initial, often chaotic infiltration of various departments has sparked alarm. it's also put the tech entrepreneur at center stage of the conservative movement -- appearing today in front of an audience at c-pac, wielding a chainsaw he said he'd use to cut the federal bure

david boren was 83 years old. still to come on the "newshour," we explore how elon musk came to hold so much power in the trump administration. and a rising star of cuban music discusses his brending genres and being a global ambassador for music. announcer: this is "the pbs newshour" from the david m. rubenstein studio at weta in washington and at the walter cronkite school of journalism at arizona state university. geoff: president trump she's tarved elon musk with an enormous job to search across the federal government and root out inefficiencies and waste. but musk's initial often chaotic infiltration of various government departments has sparked lamar. it's also put the tech entrepreneur at center stage of the conservative movement. appearing today in front of an audience at c-pac, wielding a chainsaw, he said he would use to slash the federal brock ski. william brangham looks at the history of the man at the center of this effort. >> if the bureaucracy in charge, what meaning does democracy actually have? >>