Trump impeachment trial

No, Chief Justice Roberts Cannot Issue Subpoenas

Only Senators may identify a witness to be called and no witnesses may be called unless the Senate specifically votes to allow a motion to be filed regarding whether the witness issue will even be debated. No matter how hard the Democrats try to spin this to influence the media narrative, and Chief Justice Roberts. the bottom line is that 51 Senators will decide who – if any – witnesses will be called.