London Breed is a native San Franciscan who grew up in public housing. Her opponent, a former state senator, would have been the city's first openly gay mayor.
Florida has a growing bloc of Puerto Rican voters in the wake of Hurricane Maria. Democratic Sen. Bill Nelson and his main challenger, GOP Gov. Rick Scott, are fighting over recovery efforts.
Democrats see a focus on health care as one way to hold onto Senate seats in red states in the November midterms. That's despite being repeatedly beaten on health care messaging in recent elections.
The same red state Democrats who distanced themselves from the Affordable Care Act in 2012 are embracing it in 2016. The politics on the issue have shifted and many believe what was a negative for years is now an issue that puts Republicans on the defensive.
President Trump endorsed the challenger to Rep. Mark Sanford, R-S.C., over the his criticism of the president. Trump endorsed the leading GOP gubernatorial candidate in Nevada while polls were open.
The Supreme Court upheld the most aggressive voter-purge law in the country. If a voter doesn't respond to mailings or hasn't voted in two consecutive elections, they are kicked off the rolls.
The South Carolina Republican survived an infamous sex scandal as governor. But now he faces his toughest primary challenge yet with an opponent who is hitting him for his opposition to Trump.
Keith Ellison announced on Tuesday that he will be running for Minnesota Attorney General, giving up his seat in Congress. NPR's Michel Martin talks to him about that decision.
In asking voters to rank candidates in order of preference, Maine becomes the first U.S. state to adopt a system also used in Australia, Ireland, several other countries, and a handful of U.S. cities.