Meet the phenomenal dad who pushed his son's wheelchair cross-country

In honor of Father’s Day, TODAY is sharing stories of phenomenal fathers. Kathie Lee Gifford spotlights Shaun Evans, who ran across the country for an entire summer while pushing his son Shamus, who has cerebral palsy, in a specially equipped wheelchair. Shaun and Shamus join KLG and Hoda live from Shamus’s school.