In a pair of tweets — reposted Sunday night to correct a spelling error in his earlier pronouncement — the president said two years of his presidency had been squandered by the “Collusion Delusion.” The rhyming catchphrase is his name for the probe into Russian election interference and the quest to discover whether members of his campaign team worked to enable foreign meddling and whether he acted unlawfully to obstruct the investigation. He also repeated his denouncement of the inquiry as a “Witch Hunt,” even though he also claims falsely that it exonerated him.