POTUS tweeted on 19 DEC 2020
https://twitter.com/realDonaldTrump/status/1340333619299147781
Twitter added a message/warning.
'Election officials have certified Joe Biden as the winner of the U.S. Presidential election.'
Note that this message was added to the message authored and published by POTUS. That is editorializing. Twitter is a publisher of its that addition.
Think of it this way. When Twitter does this, they are putting a sandwich board on the person who is in the public square speaking his own thoughts. This is not merely a disclaimer. This broadcasts their editorial message which is overlayed/piggybacked onto a message that will be seen by hundreds of thousands if not millions by virtue of the attention drawn to the words of POTUS. If this was an advertisement attached to, say, an athlete's uniform, the unilateral act would still be recognized as a transaction.
What then is the quid pro quo?
That Twitter disclaimer/editorial/unilater-transaction was directly based on a projection published by 'The Associated Press, NBC News and other media outlets'.
Here is where Twitter's link takes the reader.
https://twitter.com/i/events/1318573265820921857
10 DEC 2020 BLURB from TWITTER which implicitly cites 14 & 15 DEC 2020 twats from NY TIMES, LOS ANGELES TIMES, FOX NEWS, ABC WORLD NEWS, TWITTER MOMENTS.
Each presented another editorial - mistakening using variations on the them of 'official' victory for BIDEN. The FOX NEWS citation was a report that quoted SENATOR MCCONNELL.
Followed by moar twats on the theme of newsmedia projections for a BIDEN win.
House of cards.