Answer:
Barack Obama had to retake it two times. In 2008 he took it but the Chief Justice messed up so the next day they did it again. Then in 2012 he did a private swearing as it was on a Sunday then the next day he did it in public.
Explanation:
The additions of House of Representatives, and Senate.
Answer: i think it’s the first one and the last one .
Explanation: sorry if it’s wrong