Political parties

Ukrainian President Volodymyr Zelenskiy, center, reacts with his team as they look at the election results at his party's headquarters after a parliamentary election in Kiev, Ukraine, Sunday, July 21, 2019. Zelenskiy's party took the largest share of votes in the country's snap parliamentary election, an exit poll showed Sunday. (AP Photo/Evgeniy Maloletka)

FILE - In this May 29, 2019, file photo, Special counsel Robert Mueller speaks at the Department of Justice in Washington, about the Russia investigation. House Republicans are pledging tough questioning of special counsel Robert Mueller when he testifies before Congress this week as Democrats plan to air evidence of wrongdoing by President Donald Trump in a potentially last-ditch bid to impeach him. (AP Photo/Carolyn Kaster, File)

FILE - In this Nov. 6, 2018, file photo, Amy McGrath speaks to supporters in Richmond, Ky. Democratic candidates in some key states in the 2020 race aren’t going along as some in the party’s presidential field takes a liberal turn. Among the latest discordant voice is Amy McGrath of Kentucky, a Marine running against Senate Majority Leader Mitch McConnell. (AP Photo/Bryan Woolston, File)

FILE - In this Nov. 6, 2018, file photo, Amy McGrath speaks to supporters in Richmond, Ky. Democratic candidates in some key states in the 2020 race aren’t going along as some in the party’s presidential field takes a liberal turn. Among the latest discordant voice is Amy McGrath of Kentucky, a Marine running against Senate Majority Leader Mitch McConnell. (AP Photo/Bryan Woolston, File)

President Donald Trump waves as he boards Air Force One at Andrews Air Force Base, Md., Friday, July 19, 2019. (AP Photo/Manuel Balce Ceneta)

Ukrainian President Volodymyr Zelenskiy, center, gestures as he arrives at a polling station during a parliamentary election in Kiev, Ukraine, Sunday, July 21, 2019. Ukrainians are voting in an early parliamentary election in which the new party of President Volodymyr Zelenskiy is set to take the largest share of votes. (AP Photo/Evgeniy Maloletka)

FILE - In this July 12, 2019, file photo, Democratic presidential candidate Sen. Kirsten Gillibrand, D-N.Y., speaks at a town hall meeting during a campaign stop in Bloomfield Hills, Mich. Plagued by anemic polling and fundraising, many 2020 Democratic presidential campaigns have fallen into a spiral of perceived struggles that become increasingly self-fulfilling. That includes Gillibrand’s championing of women’s rights, Washington Gov. Jay Inslee’s focus on climate change and former Colorado Gov. John Hickenlooper’s pitch as a principled moderate. (AP Photo/Carlos Osorio, File)

President Donald Trump points to a reporter for a questions as he speaks with reporters on the South Lawn of the White House before departing, Friday, July 19, 2019, in Washington. (AP Photo/Alex Brandon)

Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., speaks about his "Medicare for All" proposal Wednesday, July 17, 2019, at George Washington University in Washington. (AP Photo/Patrick Semansky)

FILE - In this May 29, 2019, file photo, special counsel Robert Mueller speaks at the Department of Justice in Washington, about the Russia investigation. To prepare for next week's high stakes hearing with Mueller, some Democratic members and staff are watching old video of his previous testimony. Others are closely re-reading Mueller's 448-page report. And most of them are worrying about how they'll make the most their short time in front of the stern, reticent former FBI director. (AP Photo/Carolyn Kaster, File)