As a presidential candidate, Donald Trump repeatedly attacked his Democratic adversary, Hillary Clinton, in 2016 over her use of a private computer server for official emails when she was U.S. secretary of state.

Now the Republican president has his own server problem as he seeks re-election to the White House in 2020.

A whistleblower¡¯s complaint that has led the U.S. House of Representatives to open a Trump impeachment inquiry accuses White House officials of trying to conceal ¡°politically sensitive¡± information about Trump¡¯s July 25 phone call with Ukrainian President Voldymyr Zelenskiy by moving it to one of the government¡¯s most sensitive computer systems.