They get won by getting the most votes. And how do they get the most votes? Well, by persuading the most people (of those who bother to vote) that your position on the issues is the one that will work the best for them. Getting that message out takes money. And how do you get the money? Well, by persuading the people who give money to politicians that your position on the issues is the one that will work the best for them.
"The most money" and "the most votes" are not completely unrelated, and they're not related only by "money lets you yell the loudest at easily-influenced voters". Campaigns attract money for the same reason they attract votes; it's not surprising to see a large correlation.
Meanwhile, the free speech issues involved in regulating campaign spending, while admittedly very inconvenient for all of us, are real, and no appeal to plutocracy extinguishes them.
Certainly: the approach Sanders seems to take to this problem, of literally amending the Constitution to neuter to First Amendment and then delegating to Congress --- yes, this Congress --- an unlimited power to regulate political speech, is not OK with me.
There are lots of reforms I want to see happen at the federal level. Sentencing reform, accountability for prosecutors, financial markets regulation, health care, school funding, health care, drug decriminalization, and health care are all I think good targets for top down federal regulation. Campaign finance, I think, might be a better thing for states to grapple with first.
What are your fears if "The Democracy is for People Amendment" passed? Are you worried that the congress would limit political spending too much? Or are you worried that the amendment doesn't specifically separate political spending from political speech well enough?
SECTION 1.To advance democratic self-government and political equality, and to protect the integrity of government and the electoral process, Congress and the States may regulate and set reasonable limits on the raising and spending of money by candidates and others to influence elections.
[0] - https://www.congress.gov/bill/113th-congress/senate-joint-re...
If we adhere to the idea that "money is speech" (Buckley v Valeo) and resist all attempts at suppressing speech, how do we avoid an eventual slide into plutocracy when upwards of 90% of all elections these days are won by the candidate who spends the most money?