So, he was not on oxygen at that moment the doctor was speaking.

[boston bean]

I can think of one or two reasons why oxygen would no longer be needed.

[mitch96]

1. They lied about everything pertaining to his health. Why would they tell the truth now? nt

[Ms. Toad]

2. Because - as to the oxygen - they refused to answer the question

that would have required an outright lie: was he ever on oxygen.

[mitch96]

3. So they go for the lie of omission... yes? nt

[Ms. Toad]

4. Definitely - as to the oxygen.

He was asked 3 times.

Each time he started out by declaring he is not currently on oxygen.

The closest he got (on the third try) was that he was not on oxygen at Walter Reed after they settled him in, had not been on oxygen today, and was not on oxygen while some kind of evaluation was going on (it wasn't clear to me whether that was at the White House or Walter Reed) - but it clearly left a time period during which oxygen was used - since you don't deny a simple question that specifically unless you are hiding something.

[bif]

5. Whatever they say, the opposite is true.

Plain and simple. It's an Orwellian Universe now!

[boston bean]

6. Think about why one may not need oxygen.