Crypto czar David Sacks claimed Sen. Elizabeth Warren (D-MS) implemented the “wrong policy” on cryptocurrencies when she allegedly controlled then-President Joe Biden’s autopen.

While Republicans seek answers surrounding Biden’s use of the autopen, a machine that, when authorized by the president, allows anyone to duplicate the signature of the commander-in-chief onto a document. Earlier this month, House Oversight Committee Chair James Comer announced an investigation into the autopen, saying he believes “we’ve identified the staffer” who operated it.