The best source you can cite is a series of twitter posts that gets basic facts wrong, like the timeline and "test" contents?

The link claims the new "test" was implemented in 2014. It makes this claim repeatedly. But the BA was implemented in 2013 after years of being refined (including, as discussed by the OIG, by having current ATC staff take it). It was not intended to increase DEI-style diversity; Fox News ran a report in 2015 about a (tribal) Native American candidate who would have aced the BA if DEI-style diversity had been the goal. The original goal was to vastly expand the pool of candidates, because the FAA had a serious shortfall of candidates willing to work in all of the locations where ATCs were required and the hope was that they by bringing in more applicants, including so-called less qualified candidates, this would yield candidates willing to work at difficult-to-staff smaller airports where candidates wouldn't need to be as highly qualified to adequately perform the job.

The claim that the "correct" answers were leaked to the black ATC union (while true) is irrelevant. The "test" was a biographical questionnaire. The only way to cheat was to lie. And notably, members of the NBCFAE who supposedly had copies of the "correct" answers...didn't score any better than the people in the lawsuit suing over the test. Because again...the only way to cheat was to lie... (Unless those of you railing against the BA are suggesting that someone actually needs to be told that having more experience and expressing more enthusiasm about work is better than having less experience and not caring about your job?)

And one final important point: after Congress eliminated the BA in 2018, in 2019 Trump's FAA implemented the diversity hiring program he spent most of yesterday railing against.

Yep, that's right. The evil DEI program that Trump is mad about is his own program.