Glenn Kirschner, a former federal prosecutor, criticized the president for saying that Congress had no right to hear his testimony.
The former vice president's stance on testifying was blasted in a video released on Thursday.
He said that the words that Mike Pence recently said disqualified him from ever holding public office again.
The ex-prosecutor said that the American people have no right to their testimony as Congress tries to keep this from happening again.
There is enough reason for Congress to question Pence about Trump's attempts to overturn the election.
While Trump recently launched his presidential campaign, Pence continues to ponder a White House bid of his own, which would put him at odds with his old boss.