On the recordDecember 18, 1998
It is a coup d'etat when you impeach a President for allegations that even if true the overwhelming majority of constitutional scholars say are not impeachable offenses. It is a coup d'etat when most of the prosecutors who testified in front of the committee said no prosecutor would seek an indictment because no jury would convict on the evidence we have. And it is a coup d'etat when you seek to upset an election, to overturn an election without a broad consensus of the necessity for doing so against the majority of the American people. That describes a coup d'etat, Mr. Speaker.
Source
govinfo.gov




