Pelosi: He was not... there was no acquittal. You can’t have an acquittal unless you have a trial. And you can’t have a trial when you have witnesses and documents. So he can say he was acquitted, and the headlines can say “Acquitted,” but he’s impeached forever.
Not to mention that they never actually approved an investigation by a vote of the House. Giuliani said that was the reason the President was deprived of due process and that the Republicans on the committees couldn’t even call witnesses.