Hillary Clinton won the Puerto Rico primary Sunday, edging even closer to the delegate majority she needs to become the presumptive nominee of the Democratic Party.
A total of 60 pledged delegates were at stake in the island primary contest, which comes ahead of Tuesday's crucial race in California.
Puerto Rico voters faced long lines and confusion over polling stations, many of which had closed since the Democratic primary in 2008. The island is also in the throes of an economic crisis after having accumulated more than $70 billion of outstanding debt.
Gov. Alejandro Padilla endorsed Clinton on Wednesday, calling her the best candidate to help the government out of the fiscal crisis.
Clinton also notched a victory in Saturday's caucuses in the U.S. Virgin Islands.
She is widely expected to secure the Democratic nomination on Tuesday when Democratic voters in six states, including California, will head to the polls in the last multi-state primary day of the nomination race.
At a rally in Sacramento late Sunday, Clinton underscored the importance of that primary, telling the crowd: "I want to finish strong here in California. It means ... it means the world to me."
She applauded California for raising the state minimum wage, saying the move should be matched nationally, but also again criticized Donald Trump as divisive and "not qualified or temperamentally fit to be president and commander in chief."
"We're going to have a very contentious campaign, because I'm going to point out at every single moment that I can why I believe the Republican nominee should never get near the White House," she said.
Clinton said Trump had run "a campaign based on insults," adding: "That is not what I call unifying leadership. That, instead, is sowing discord and division."