Retired teacher Newton Baker long dreamed of running across the United States, but recently thought it would never happen; but at 73, he finally achieved his goal

Newton Baker is 73 and twice has had cancer. But he's a passionate ultra runner. Nothing keeps him from running. He achieved a lifetime goal by running from the coast of California to Washington, D.C., as a fund-raiser for organizations that help children stay fit, active and healthy. My story for ESPN.com's Endurance sports section: http://espn.go.com/sports/endurance/story/_/id/13082541/endurance-sports-cancer-survivor-newton-baker-helps-kids-run-usa