Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Snaking around the basketball arena hours before doors opened, supporters carried signs, while Sanders' campaign staff asked for volunteers and others handed around petitions.
Kristian Foden-Vencil / OPB
Bernie Sanders Rally at the Moda Center on Friday March 25
Jason Bernert / OPB
"Little Bernie" makes another appearance in support of Bernie Sanders at a campaign rally in Portland on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Jesus, or "Little Bernie," gets the crowd excited before Sanders takes the stage. When asked about his hair he said, "My mom put white paint in my hair to make me look like Bernie Sanders."
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Brycen Driver from Clackamas at the Bernie Sanders rally at Portland's Moda Center on March 25, 2016.
Kristian Foden-Vencil / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Tia McCann, left, and Emily Seemly at the campaign rally for Bernie Sanders at the Moda Center on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Brycen Driver, left; Ryan Rou, center; and Trace Czyzewski at the presidential campaign rally for Bernie Sanders in Portland on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
A bird landed on stage at a campaign rally for presidential candidate Bernie Sanders at Portland's Moda Center on March 25, 2016.
Jason Bernert / OPB
Presidential candidate Bernie Sanders drew thousands to Portland's Moda Center for a campaign rally on March 25, 2016.
Jason Bernert / OPB
Bernie Sanders at the rally
Jason Bernert / OPB
Bernie Sanders raises his fist at his Portland rally on Friday, March 25, 2016.
Jason Bernert / OPB
Bernie Sanders at a campaign rally in Portland on March 25, 2016.
Jason Bernert / OPB
A day to set up and the Moda Center is cleared out in a half hour after Bernie Sanders leaves the arena.
Jason Bernert / OPB
Presidential candidate Bernie Sanders told thousands of cheering fans in Portland that he is proving he’s the strongest candidate to take on Republican frontrunner Donald Trump.
Sanders, anticipating a big win in Washington state’s Democratic caucuses on Saturday, attracted 11,500 to a Friday rally at Portland's Moda Center.
He exulted in a new poll showing him one point ahead of Democratic rival Hillary Clinton. He also boasted that several polls show him running stronger against Trump or other potential Republican nominees.
Related: Thousands Gather To See Bernie Sanders In Vancouver, Washington
"If we do not allow the Trumps of the world to divide us up; if we stand together as black and white and Latino and Asian-American and Native American, gay and straight, men and women, there is nothing we cannot accomplish," Sanders said.
Sanders won repeated cheers as he called for free tuition at public colleges, immigration reform and government-paid health care for all.
He sharply attacked Clinton for voting in favor of going to war in Iraq. And he criticized her for taking campaign donations from Wall Street.
With 101 delegates at stake, Washington is the largest caucus state. Sanders has won almost all of the caucuses.
Sanders now believes he is entering a stretch of the primary campaign where he can cut into Clinton’s delegate lead. Among his targets: Oregon’s May 17 primary.