The Missing Piece:

From left, James, 9, Sara and Charley Kaplan, 4, hold signs and cheer with other students and parents at a rally for Gavin Grimm organized by Sara outside of Malcom X Elementary School Feb. 15, 2016 in Berkeley, Calif. Grimm, a transgender teenager, sued the school board of his Virginia high school for the right to use the bathroom that corresponds with his gender identity. Sara Kaplan organized a rally that was one of many coordinated across the nation in support of Grimm before his case was to be seen by the Supreme Court.

From left, James, 9, Sara and Charley Kaplan, 4, hold signs and cheer with other students and parents at a rally for Gavin Grimm organized by Sara outside of Malcom X Elementary School Feb. 15, 2016 in Berkeley, Calif. Grimm, a transgender teenager, sued the school board of his Virginia high school for the right to use the bathroom that corresponds with his gender identity. Sara Kaplan organized a rally that was one of many coordinated across the nation in support of Grimm before his case was to be seen by the Supreme Court.