The original, bungled version on Tuesday caught observers by surprise and then got replayed on cable news shows.

It happened when Obama interrupted Roberts midway through the opening line, in which the president repeats his name and solemnly swears.

Next in the oath is the phrase ” … that I will faithfully execute the office of president of the United States.” But Roberts rearranged the order of the words, not saying “faithfully” until after “president of the United States.”

That appeared to throw Obama off. He stopped abruptly at the word “execute.”

Recognizing something was off, Roberts then repeated the phrase, putting “faithfully” in the right place but without repeating “execute.”

But Obama then repeated Roberts’ original, incorrect version: “… the office of president of the United States faithfully.”