Consular staff are trained on this as-is. It is hard to imagine a re-training on process that could take any more than two days.
And yet we have an entirely open-ended "We have nooooo idea how long this will take!"
Garbage. This is the same administration that paused all immigration from Africa except for "Caucasian South Africans" who were classified as refugees by default, regardless of their motivation on immigration.
This is just Stephen Miller doing exactly what he said he intended to do, and exactly what Project 2025 said the government should do (meanwhile, Trump, "What's that? Never heard of it").