DES MOINES, Iowa — The Powerball jackpot is on the upswing again, growing to more than $400 million on the Thanksgiving holiday. The jackpot was an estimated $403 million Thursday after no winning numbers were selected in a Wednesday night drawing. The next drawing is scheduled Saturday night, and the jackpot could grow in the meantime. The prize is on the brink of becoming one of the largest jackpots in U.S.