Original sentence: As Senator he introduced and championed the Don't Ask, Don't Tell Repeal Act of 2010 which repealed the Don't Ask Don't Tell military policy barring homosexuals from openly serving in the military
Edited sentence: As Senator he was hailed by many as a "civil rights hero" for leading the historic and ultimately successful effort to repeal the Don't Ask Don't Tell military policy that barred homosexuals from openly serving in the military, by introducing and championing the Don't Ask, Don't Tell Repeal Act of 2010