Actress Scarlett Johansson speaks to the crowd during the Women's Rally in Los Angeles. Mark Ralston / AFP
Actress Natalie Portman, right, speaks as she is joined by Eva Longoria, background left, and Constance Wu at a Women's March against sexual violence and the policies of the Trump administration in Los Angeles. Jae C Hon/ AP photo
Actress Lupita Nyong'o introduces California Attorney General Xavier Becerra at a Women's March in Los Angeles. Jae C Hon/ AP photo
Actress Viola Davis speaks to the 500,000 strong crowd during the Women's Rally on the one-year anniversary of the first Women's March in Los Angeles. Mark Ralston / AFP
Actress Elizabeth Banks speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Actress Eva Longoria, centre, speaks as she is joined by Natalie Portman, left, and Constance Wu. Jae C Hon/ AP photo
Actor Adam Scott waves toward the crowd before introducing a speaker at a Women's March in Los Angeles. Jae C Hon/ AP photo
Actress Whoopi Goldberg speaks to demonstrators as they take part in the Women's March in Manhattan in New York City. Eduardo Munoz / Reuters
Artist Yoko Ono, left, takes part in the Women's March in Manhattan in New York City. Eduardo Munoz / Reuters
Comedian Larry Wilmore speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Director Rob Reiner speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Actress Allison Janney speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Actor Ted Danson, right, and his wife Mary Steenburgen address demonstrators during the Women's March in downtown Los Angeles. Mike Nelson / EPA
Actress Scarlett Johansson speaks to the crowd during the Women's Rally in Los Angeles. Mark Ralston / AFP
Actress Natalie Portman, right, speaks as she is joined by Eva Longoria, background left, and Constance Wu at a Women's March against sexual violence and the policies of the Trump administration in Los Angeles. Jae C Hon/ AP photo
Actress Lupita Nyong'o introduces California Attorney General Xavier Becerra at a Women's March in Los Angeles. Jae C Hon/ AP photo
Actress Viola Davis speaks to the 500,000 strong crowd during the Women's Rally on the one-year anniversary of the first Women's March in Los Angeles. Mark Ralston / AFP
Actress Elizabeth Banks speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Actress Eva Longoria, centre, speaks as she is joined by Natalie Portman, left, and Constance Wu. Jae C Hon/ AP photo
Actor Adam Scott waves toward the crowd before introducing a speaker at a Women's March in Los Angeles. Jae C Hon/ AP photo
Actress Whoopi Goldberg speaks to demonstrators as they take part in the Women's March in Manhattan in New York City. Eduardo Munoz / Reuters
Artist Yoko Ono, left, takes part in the Women's March in Manhattan in New York City. Eduardo Munoz / Reuters
Comedian Larry Wilmore speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Director Rob Reiner speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Actress Allison Janney speaks at the second annual Women's March in Los Angeles. Patrick T Fallon / Reuters
Actor Ted Danson, right, and his wife Mary Steenburgen address demonstrators during the Women's March in downtown Los Angeles. Mike Nelson / EPA
Actress Scarlett Johansson speaks to the crowd during the Women's Rally in Los Angeles. Mark Ralston / AFP