You say uninterested, yet it seems more like complicit. Both chambers of Congress are led by the same party as POTUS. They are quite happy with how things are going, and actively work to enable POTUS and his agenda. There are some things where previous Congress has put limits on POTUS that this POTUS is ignoring. If this Congress was really effective, they'd repeal those regulations so POTUS' actions would not run afoul of legislation. Instead, they are just ignoring the flagrant violations, and letting SCOTUS (also led by the same party) get involved with their decisions that POTUS has flagrantly pushed back against as well.
And if you were the NSA, how could you pass up on using some of that ‘accidentally’ collected intel to help avoid distractions while you ‘protect the nation’ eh?
Today's Congress entirely failing to regulate the executive branch and seemingly... uninterested? in doing so is troubling for the stability of the republic.