The 25 individuals are thought to be reliable conservatives, most now serving on federal appeals courts or state supreme courts. The list includes one lawmaker: Sen. Mike Lee, R-Utah.
The 4-4 vote means union opponents have failed, for now, to reverse a long-standing decision that allows states to mandate "fair share" fees from nonunion workers.
Justice Antonin Scalia's death comes just weeks before the Supreme Court hears its biggest abortion case in a decade. The reach of that decision will likely be impacted by his absence.
NPR's Nina Totenberg explains how the idea that the Constitution is "not living but dead" transformed the Supreme Court during Antonin Scalia's tenure as a justice.
One thing that is undeniable about Justice Antonin Scalia is that his opinions were always a good read. He was a reliable conservative, but every once in a while he broke rank.
The Supreme Court ruled 6-3 to uphold the nationwide subsidies called for in the Affordable Care Act. Justice Antonin Scalia, in his dissent, calls the court's rationale "quite absurd."