[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2009/images/03/24/art.getty.mccain.smiling.jpg caption="McCain is trying to get a pardon for boxer Jack Johnson."]
WASHINGTON (CNN) - Arizona Sen. John McCain and New York Rep. Pete King are introducing a resolution on Wednesday that seeks to posthumously pardon Jack Johnson, the first African American heavyweight boxing champion.
Johnson was convicted for violating the Mann Act in 1913, which made it illegal to bring women across state lines for "immoral purposes." At the time, Johnson was in a relationship with a white woman and he spent a year in jail.
The Republican lawmakers will be joined by Johnson's great niece, Linda Haywood, at a press conference on Capitol Hill Wednesday afternoon.