Democratic voters head to the polls in Kentucky and Oregon today. The primaries come after supporters of Bernie Sanders protested procedures they saw as favoring Hillary Clinton at the Nevada convention over the weekend. Back in February, initial results in Nevada favored Clinton, but then Sanders mobilized more support at the county conventions, making it appear he might actually end up with more delegates. At the state convention Saturday, Sanders supporters erupted in protest after they say the delegate allocation rules were abruptly changed in Clinton’s favor. They also claimed about 60 Sanders supporters were wrongly denied delegate status. Clinton emerged with 20 pledged delegates to Sanders’ 15.