From the mid-1950s on, Graham became increasingly opposed to segregation and racism, while keeping his eye on public opinion. For instance, in 1957 he invited Rev. Martin Luther King, Jr. to join him in the pulpit at his 16-week revival in New York City, where 2.3 million gathered at Madison Square Garden, Yankee Stadium, and Times Square to hear them. Graham never appeared publicly again with King, but he posted bail for the minister to get him released from jail in 1963