NEW YORK — New York Attorney General Letitia James filed a lawsuit Thursday seeking to dissolve the powerful National Rifle Association, alleging self-dealing among the organization’s top officials despite being registered as a nonprofit.

James accused senior leadership at the nation’s largest pro-gun lobbying group, including chief executive Wayne LaPierre, of diverting millions of dollars away from the organization’s “charitable mission” for trips to the Bahamas, private jets, expensive meals and other luxury items.