FILE - People gather in front of the Puerto Rico's Capitol on April 30, 2015 in San Juan. Puerto Rico will hold a Democratic presidential primary Sunday, the only opportunity for Democrats on the island to officially weigh in on the race for the White House. (AP Photo/Ricardo Arduengo, File)
FILE - Vice President Kamala Harris stands in front of a Puerto Rican flag, in San Juan, Puerto Rico, March 22, 2024. Harris visited Puerto Rico to tout the administration's record on disaster relief and to attend a fundraiser. Puerto Rico will hold a Democratic presidential primary Sunday, April 28, the only opportunity for Democrats on the island to officially weigh in on the race for the White House. President Joe Biden has already unofficially clinched the nomination and faces minimal opposition on the ballot. (AP Photo/Alejandro Granadillo, File)
FILE - Puerto Rico residents line up to vote during the U.S. territory's Democratic primary election in San Juan, Puerto Rico, June 5, 2016. Puerto Rico will hold a Democratic presidential primary Sunday, April 28, 2024, the only opportunity for Democrats on the island to officially weigh in on the race for the White House. Puerto Rico can't vote in the general election but may participate in presidential primaries and send delegates to both national conventions this summer. President Joe Biden has already unofficially clinched the nomination and faces minimal opposition on the ballot. (AP Photo/Carlos Giusti, File)
FILE- A woman votes in the Democratic primary election at a polling station in San Juan, Puerto Rico, June 1, 2008. Puerto Rico will hold a Democratic presidential primary Sunday, April 28, 2024, the only opportunity for Democrats on the island to officially weigh in on the race for the White House. Puerto Rico can't vote in the general election but may participate in presidential primaries and send delegates to both national conventions this summer. President Joe Biden has already unofficially clinched the nomination and faces minimal opposition on the ballot. (AP Photo/Brennan Linsley, File)