Sure. Here is us politician finances from 2024. Note that the vast majority is from individual contributors.

Only 6-8% of us political funding in 2024 came from business-PAC contributions.

https://www.fec.gov/resources/campaign-finance-statistics/20...

Further splits here: https://www.fec.gov/resources/campaign-finance-statistics/20...

There are exceptions to this of course but most politicians answer to voters much much much more than big business.