The Bernie Sanders campaign alleges that Hillary Clinton's campaign is running afoul of campaign finance law by using a joint fundraising committee with the Democratic National Committee.
Some teachers worry the heated rhetoric is causing stress, especially among immigrant and minority students. Others are trying to channel the political interest into learning opportunities.
NPR's Robert Siegel talks with Haley Barbour, the former governor of Mississippi and former chairman of the Republican National Committee, about the state of the Republican Party.