Voters in four states are casting ballots in key general elections, including gubernatorial races in Kentucky and Mississippi along with legislative races in Virginia.
Sondland, a Trump donor who became a comparative newcomer to diplomacy, has been described as central to the president's strategy to pressure Ukraine's government to conduct political investigations.
Career diplomat Volker was described as being one of "three amigos" deputized to run a shadow foreign policy for Ukraine. He has stepped down from his role at the State Department.
Why do five states hold general elections in odd-numbered years, when there isn't a presidential or congressional race? Some of our political reporters in those states dug in on that question.
The Massachusetts senator has been under pressure to say whether she would raise taxes on the middle class to fund single-payer health care. Her plan opts for a variety of other revenue sources.
As Democratic voters are looking more closely at Sen. Elizabeth Warren as a likely nominee, she answered some of their concerns about her candidacy while campaigning in New Hampshire.
George Papadopoulos was convicted for lying to the FBI during the probe looking into Russia's role in the 2016 election. Now he's seeking a House seat that will be vacated by Democrat Katie Hill.