Unfortunately it will probably take a huge scandal that baldly and stupidly shows how unchecked those powers are and what can be possible with them. I think Trump is capable of that kind of misstep. Like say SNL writers were PMing each other a tasteless joke about assassinating Trump and the president tweets about it and orders their arrest.
In the end, something dramatic like that could actually have a really positive effect on the consciousness of the public. It could also have a really negative effect where people accept the new normal. It's hard to know.