United States presidential election

FILE - In this April 29, 2019 file photo, Electoral Council representatives arrive at the Electoral Tribunal after a ceremony where the National Police and national security departments recognized the authority of the Electoral Council as head of security ahead of the upcoming general elections in Panama City. Panamanians will elect a new president on Sunday, May 5. (AP Photo/Arnulfo Franco, File)

President Donald Trump smiles during a meeting with Slovak Prime Minister Peter Pellegrini in the Oval Office of the White House, Friday, May 3, 2019, in Washington. (AP Photo/Alex Brandon)

FILE - In this Sept. 20, 2018, file photo, voting booths stand ready in downtown Minneapolis. Whether campaigns have learned from the cyberattacks in the 2016 election is a critical question ahead of next year’s presidential race. . (AP Photo/Steve Karnowski, File)

Four pages of the Mueller Report lay on a witness table in the House Intelligence Committee hearing room on Capitol Hill, in Washington, Thursday, April 18, 2019. (AP Photo/Cliff Owen)

Democratic presidential candidate Sen. Bernie Sanders, I-Vt., Bernie Sanders speaks during a rally at Discovery Green on Wednesday, April 24, 2019, in Houston. (Brett Coomer/Houston Chronicle via AP)

FILE - In this Jan. 25, 2019, file photo, Senate Minority Leader Sen. Chuck Schumer of N.Y., accompanied by Speaker Nancy Pelosi of Calif., left, calls on a reporter during a news conference on Capitol Hill in Washington. President Donald Trump and Pelosi and Schumer are coming together in search of a plan to fix the country’s crumbling infrastructure. It’s seen as the issue with the best chance for the two sides to work together _ though the odds aren’t good. (AP Photo/Andrew Harnik, File)

FILE - In this Wednesday, April 10, 2019, file photo, Education Secretary Betsy DeVos testifies before the House Education and Labor Committee on Capitol Hill in Washington. A political battle is reheating over a federal program that was designed to cancel student loans for certain public workers but has largely failed to deliver that promise. The program, Public Service Loan Forgiveness, promises to erase federal student loans for public workers who make 10 years of payments while working for approved employers. (AP Photo/Manuel Balce Ceneta, File)

FILE - - In this April 25, 2019, file photo, former Vice President and Democratic presidential candidate Joe Biden arrives at the Wilmington train station in Wilmington, Delaware. Six Democratic presidential candidates trying to overcome Biden's blue-collar appeal and outsized presence in the race will pitch themselves as champions of workers and kitchen-table issues while speaking to one of America's largest unions in Las Vegas on Saturday. (AP Photo/Matt Slocum, File)

FILE - In this Sept. 27, 2018, file photo, White House counsel Don McGahn listens as Supreme court nominee Brett Kavanaugh testifies before the Senate Judiciary Committee on Capitol Hill in Washington. Rep. Jerrold Nadler, the chairman of the House Judiciary Committee has subpoenaed McGahn for testimony following the release of the report from special counsel Robert Mueller. (Saul Loeb/Pool Photo via AP, File)

FILE - In this Sept. 27, 2018, file photo, White House counsel Don McGahn listens as Supreme court nominee Brett Kavanaugh testifies before the Senate Judiciary Committee on Capitol Hill in Washington. Rep. Jerrold Nadler, the chairman of the House Judiciary Committee has subpoenaed McGahn for testimony following the release of the report from special counsel Robert Mueller. (Saul Loeb/Pool Photo via AP, File)