Bernie Sanders addresses the crowd during his speech. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Those who could not get into the rally stand outside the gates to listen to Bernie Sanders’s speech. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Campaign supporter Matt Keating gives a speech prior to the arrival of Bernie Sanders. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders waves to the crowd as he walks to the rally stage. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Eugene native Nathan Thompson perches up in a tree prior to the start of the rally. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders and campaign supporter Matt Keating embrace prior to Sanders getting on stage. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders supporters are placed on risers behind the podium. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

A rally-goer holds up a sign in the crowd. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders rally-goers wait in line to get into the rally area. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders supporters cheer during his speech while listening to him outside the rally gates. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

A Bernie Sanders supporter holds up a sign prior to the start of the rally. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Sanders campaign supporter Morgan Waters says a few words to the crowd prior to Bernie Sanders’s arrival. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders shares some statistics about the improvements in his campaign. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Eugene native Lilly Belle holds up a Bernie Sanders support sign while waiting in line. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie Sanders supporters cheer on stage prior to Sanders’s arrival. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

A rally-goer holds up a sign prior to the start of his speech. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)

Bernie supporters hold up signs while he speaks to the crowd. Presidential candidate Bernie Sanders holds a rally at Island Park in Springfield on April 28, 2016. (Taylor Wilder/Emerald)