They already started trying. The Credit Card Competition Act was introduced last year [1]. It doesn't explicitly limit interchange fees though. Instead it allow

They already started trying. The Credit Card Competition Act was introduced last year [1]. It doesn't explicitly limit interchange fees though. Instead it allows merchants to choose the payment network that payments go through which legislators hope would create a race to the bottom. [1] https://www.congress.gov/bill/118th-congress/senate-bill/1838/text https://www.congress.gov/bill/118th-congress/senate-bill/183...