Back from Puerto Rico, Juan Gonzalez reports on two stories coming out of the island over the past week: the Democratic primary, won by Sen. Hillary Clinton and overlooked by Sen. Barack Obama, and a bitter divide within the SEIU. Puerto Rican residents could vote in the primary contest, yet are not allowed to vote in the November elections for president. As the Democratic primary took place, the Service Employees International Union held its national convention in San Juan. The SEIU is embroiled in an internal battle over allegations its leadership is seeking to increase the union’s size and influence at the expense of rank-and-file members. [includes rush transcript]