[picks_at_nits]

Consider this a specification for a date range defining when his account will be restored. Now we can parse the statement as follows:

1. Indefinitely: The date range has no end.

2. And for at least two weeks: The beginning of the date range is at least two weeks away.

From this, I conclude that Mr. Trump's account will be muted for at least two weeks, and thereafter it could be un-muted at any time, but possibly the heat death of the universe may make the whole thing moot at some point.