Bernie Sanders supporters march in Salem before DNC

Maryann Beirne, of Salem, wears a handmade Bernie Sanders shirt during march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporter Patrick Beall, 35, of Salem, looks through signs to carry during a march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporters march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporters march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporters prepare to march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

A Bernie Sanders supporter marches in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporters march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporters march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

A Bernie Sanders supporter looks through signs to carry during a march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.

Bernie Sanders supporters march in downtown Salem on Sunday, July 24, 2016. The Salem rally is being held in solidarity with other "March For Bernie" events happening across the country on the eve of the Democratic National Convention in Philadelphia.