Yeah we already have judgments that the executive branch has gone well beyond it's allowed limits and the majority of SCOTUS stance has been:

"Yeah well let the legal process play out ... in the meantime our guy gets to do whatever he wants, and you're still fired / kicked out of the country / funding cut / an so on".

If it is at all inconvenient for the most powerful folks in the country, they get any limits on their actions protected by SCOTUS ... at the cost of the people.