He was also part of the group of former Olympic athletes that was pushing for the resignation of IOC President Juan Antonio Samaranch. Only months after the scandal surrounding the 2002 Salt Lake City Olympic winter Games broke, Tewksbury became prominent around the world as a critic of the IOC and demanded reforms to the system. In 1993, Tewksbury and Mark Leduc both gave interviews about their homosexuality to the CBC Radio series The Inside Track for "The Last Closet", a special episode about homophobia in sports; however, as neither was ready to fully come out at the time, both interviews were given anonymously and recorded through voice filters. In December 1998, Tewksbury officially came out as gay; he subsequently lost a six-figure contract as a motivational speaker because he was "too openly gay." Tewksbury was also highly critical of Swimming Canada's organization in the wake of the national team's poor performance at the 2004 Summer Olympics in Athens, where they failed to medal. He suggested that there was a lack of accountability within Swim Canada, and that head coach Dave Johnson was given too much power. Tewksbury became a prominent advocate for gay rights and gay causes in Canada and the world. On May 16, 2003, Tewksbury joined the board of directors for the 2006 World Outgames in Montreal and was named co-president. He was a panelist at the 2003 National Gay and Lesbian Athletics Conference in Cambridge, Massachusetts, on a panel of LGBT Olympians that also included rower Harriet Metcalf and high jumper Brian Marshall. Tewksbury was the narrator for the TV show How It's Made during the first season. In 2006, he published his second book, an autobiography entitled Inside Out: Straight Talk from a Gay Jock. Tewksbury remains a public figure working as a motivational speaker, a television commentator for swimming events, and a continued activist. He is a board member of the Gay and Lesbian Athletics Foundation. On November 30, 2006 Tewksbury was the Master of Ceremonies for the Tribute to former Prime Minister Paul Martin at the Liberal Party of Canada's Leadership and Biennial Convention in Montreal. During the 2008 Summer Olympics, Tewksbury served as CBC Sports' swimming analyst alongside play-by play announcer Steve Armitage. In December 2008 Tewksbury was invited by the government of France to speak at the United Nations in New York City on the day that a declaration was introduced