As a 47-year-old cotton rancher, White ran for the United States House of Representatives seat in California's 9th congressional district. He faced seven-term Republican incumbent Bertrand W. Gearhart in the election. Gearhart had faced one Democratic challenger in his six previous re-election bids. White defeated Gearhart after capturing a 51.3% majority with a margin of victory of more than 6,000 votes. White was challenged in 1950 by Republican Allan O. Hunter. Hunter defeated White, 52.0% to 48%. After leaving Congress White returned to his cotton growing business.