I’ve been making this point for some time. Supporting an amendment is just a way for pols to pretend they are doing something about the out of control judiciary. Anyone as smart as Cruz knows it won’t happen, and it’s unnecessary. Congress has constitutional power to limit SCOTUS jurisdiction by any “exceptions” and “regulations” they choose to enact. That’s a much easier row to hoe than passing an amendment. If any of them were serious about it, they would be working for that rather than an amendment they know will never pass.
True, congress has the power, but the 17th Amendment deprived congress of the will.