WASHINGTON — Four world-class gymnasts are asking Congress to dissolve the the U.S. Olympic and Paralympic Committee over the organization’s mishandling of the Larry Nassar sexual abuse scandal. In a letter to two U.S. senators, Olympic gymnasts Simone Biles, Aly Raisman and McKayla Maroney and NCAA gymnast Maggie Nichols said they are making the request after “years of patience, deliberation and unrequited commitment to learn from our suffering and make amateur sports safe for future generations.” “We believe the board’s past actions demonstrate an unwillingness to confront the endemic proble…