In a public speech addressing the nation late on Thursday, Temer described the accusations, which allege he asked for bribes, as "ridiculous" and vowed he would "not let go such allegations".
He also assured Brazilians that he will "always address any accusations or complaint raised against him".
"Someone who would have committed the crime Machado accused me of, would not have been able to run the country," Temer said in Portuguese.
"We