In 2018, Tester became one of the Democrats in the Senate supporting a bill that would relax "key banking regulations". As one of at least 11 other Democrats, he argued that the bill would "right-size post-crisis rules imposed on small and regional lenders and help make it easier for them to provide credit". Chuck Schumer and Elizabeth Warren vehemently opposed the legislation. Tester became the first Democrat endorsed by Friends of Traditional Banking, a political action committee that had previously endorsed Republicans.