Executive changes

FILE - In this Oct. 9, 2019, file photo a member of the United Auto Workers walks the picket line at the General Motors Romulus Powertrain plant in Romulus, Mich. General Motors CEO Mary Barra joined negotiators at the bargaining table Tuesday, Oct. 15, an indication that a deal may be near to end a monthlong strike by members of the United Auto Workers union that has paralyzed the company’s factories. (AP Photo/Paul Sancya, File)

FILE - In this Jan. 30, 2010, file photo, Vice President Joe Biden, left, with his son Hunter, right, at the Duke Georgetown NCAA college basketball game in Washington. Since the early days of the United States, leading politicians have had to contend with awkward problems posed by their family members. Joe Biden is the latest prominent politician to navigate this tricky terrain. (AP Photo/Nick Wass, File)

FILE - In this Jan. 30, 2010, file photo, Vice President Joe Biden, left, with his son Hunter, right, at the Duke Georgetown NCAA college basketball game in Washington. Since the early days of the United States, leading politicians have had to contend with awkward problems posed by their family members. Joe Biden is the latest prominent politician to navigate this tricky terrain. (AP Photo/Nick Wass, File)

FILE - In this Jan. 30, 2010, file photo, Vice President Joe Biden, left, with his son Hunter, right, at the Duke Georgetown NCAA college basketball game in Washington. Since the early days of the United States, leading politicians have had to contend with awkward problems posed by their family members. Joe Biden is the latest prominent politician to navigate this tricky terrain. (AP Photo/Nick Wass, File)

FILE - In this Jan. 30, 2017, file photo, Fox News Channel chief news anchor Shepard Smith appears on the set of "Shepard Smith Reporting" in New York. Smith, whose newscast on Fox News Channel seemed increasingly an outlier on a network dominated by supporters of President Trump, says he is leaving the network. He has worked at Fox News Channel since the network started in 1996. In a statement, Smith said he had asked the company to let him leave. He gave no reason for the seemingly sudden decision. (AP Photo/Richard Drew, File)

FILE - In this Friday, Oct. 4, 2019 file photo, Ukrainian President Volodymyr Zelenskiy reacts to media questions during Ukraine Belarus forum in Zhytomyr, Ukraine. Three House committees have released dozens of texts between U.S. diplomats in Ukraine discussing how to handle a response to President Donald Trump's demands that the country launch an investigation into Joe Biden's family. (AP Photo/Efrem Lukatsky)

FILE - In this Sept. 6, 2019, file photo, Energy Secretary Rick Perry speaks at the California GOP fall convention in Indian Wells, Calif. Perry pushed Ukraine’s president earlier in 2019 to replace members of a key supervisory board at Naftogaz, a massive state-owned petroleum company. (AP Photo/Chris Carlson, File)