New Biden administration rules overhauling the way small business loans are doled out will potentially leave thousands of sole proprietorships and the self-employed on the sidelines, despite the president's pledge to give them better access to pandemic aid. The Small Business Administration quietly decided that the benefits that President Joe Biden promised to "one-person businesses" won't be available to many of those who have already received aid from the program. The agency concedes those businesses were shortchanged under earlier rules — some received as little as $1 because of the way loans were calculated — but says it isn't able to let PPP borrowers increase existing loans. That means the more favorable new rules will only be available to new loan applicants. Dennis Ammann, the CEO of Peoples Bank in Mississippi, said "it seems as though the small businesses who needed the most help are being penalized."