The elected reps are captured by business interests. Citizens united means the best marketing team wins every election. The reps do not work for citizens, why would they? Voting has been nullified, democracy is dead.

We haven't started the Democracy phase yet in the US. It's a constitutional republic and its working exactly as designed by the founding fathers. The wealthy elite stay in control of the Senate (equivalent to the House of Lords) and the citizens get to have their say in the House (equivalent to the House of Commons). In this system nothing becomes law unless approved by the Lords of the Senate.

This started as an Aristocracy with well meaning participants but its evolved into an Oligarchy just as anacyclosis[1] predicts. The next stage is Democracy and then that, eventually, crumbles into mob rule (Ochlocracy).

[1] https://anacyclosis.org/portfolio/what-is-anacyclosis/