There was a majority in the House, and it was 50-50 in the Senate. With Harris being the tiebreaker, that’s a majority.
I also remember the line from 2022 being “If you want to pass things progressives are clamoring for, we need more Democrats.” So we elected an additional Democrat. Then Sinema left the party. Then Fetterman was like “Sucker!” and sprinted toward the center. And now Manchin has left the party.