At least 100 people, including local politicians, gathered on Tuesday night to put pressure on museum leadership

Represented by a UAW local, curators, conservators, educators and others at the New York institution will now seek to negotiate a contract with management

A United Auto Workers local that represents employees at several other museums files a petition on their behalf for a union vote

From curators to porters, more than 180 workers are involved in the effort as labour campaigns multiply among US art institutions