The Mayor of the City of New York took issue with a number of works in a Brooklyn Museum temporary exhibit titled "Sensation: Young British Artists from the Saatchi Collection." Especially troubling to him was a painting by Nigerian artist Chris Ofili, entitled "The Holy Virgin Mary." In that work, Ofili depicted Mary with African features, and attached a clump of elephant dung as well as photographs of female genitalia to his work. The Mayor termed Ofili's painting "sick" and "disgusting." He insisted that a city supported museum had no right to display the exhibit.
Could the mayor prohibit the work from appearing in the show? Why or why not? Explain your answer using the appropriate legal standard.