waves him off to jump in.

[GoodTaste]

Does "waves him off to jump in" mean "turns him down"?

But what does "the letter" refer to (in "the letter was perfect")?
--------------------------
Sam Harris tweets in replying to Dan Diamond,
4-D chess? No, this is Evil Chauncey Gardner.



Dan Diamond tweeted 11h ago,
AZAR tries to explain that more tests are coming, but Trump waves him off to jump in.


TRUMP: “Anybody that needs a test gets a test…. the tests are all perfect like the letter was perfect. The transcription was perfect. Right? This was not as perfect as that but pretty good.”

 

[emsr2d2]

It means that Trump dismissed Azar's comments/explanation in order to "jump in" (a kind of interruption) with comments of his own.

I have no idea what "the letter" refers to. It must be something in a longer version of the story but it wasn't included in the Twitter exchange/post.

 

[GoesStation]

Trump was probably referring back to his impeachment. The "transcription" he mentions next is the record of his phone call with the Ukrainian president.