Why does the US election campaign like this?

A friend of mind said the US political parties are beholden of the donor class than the people. I thought there was laws how much money business can give to politicians?

Well is there not law that says how much money businesses and rich people can give politicians? To stop corruption?

I also thought politicians cannot buy house or car with that money or put that money in the bank.

I thought that money can only be used for election campaign?

 

Elon Musk personally contributed $288 million to Trump's reelection campaign, which is why he was allowed to gut the VA and Social Security.
The U.S. is an Oligarchy? The Research, Explained

 

The Supreme Court told the Native Americans their land treaties would be respected so long as the grass is green and the sky is blue. Today, conservatives have shredded our constitution for over twenty years, and Donald Duck has declared war on Disney and the Muppets. These days, about the only thing the constitution guarantees, is that you have the right to die with a gun your hand.

I tell people testing their DNA has become the most reliable way to tell how anyone votes, and they tell the solution is to "Vote The Bums Out Of Office!"

The US no longer has an electoral system, and at least half the population insists all we have left is reality TV. Donald Duck has been found guilty of 34 felonies, is responsible for hundreds more, has even been accused of committing treason, and nobody can even form a viable third party, because they're censoring half of reality.

Assassinating democrats has become the latest voting fashion, because the money is doing all the driving worth talking about. We'll just have to wait and see, how many democrats they have to kill, in order to find the balls to demand a working government.