[nopenopenopeno]

You have an incredibly naive impression of representative democracy and capitalist political economy. US politicians serve the rich, not only because they are the rich but also because they need the donations to even be able to run. This isn’t a mere hiccup but rather the entire point of the design.

[pochekailov]

Yes, in my experience, the naïve interpretation is right 80% of time and it is always best to start from a naïve explanation of a process.

US politicians serve the rich only because they think that donations will help them win. Make the donations irrelevant - "rich" will loose the political power. How to make the donations irrelevant - go to vote, especially if you are poor and powerless. Convince your friends to vote. And not for a president, but for a local mayor, city council, judge etc.