The special counsel leading the Russia investigation raised the prospect in March of issuing a grand jury subpoena for President Trump, his former attorney said Tuesday.
The Republican chairman of a House oversight committee says he will ask former FBI Director James Comey to testify at a hearing next week that will look into whether President Donald Trump pressured Comey to shut down an investigation.
National security adviser Michael Flynn has resigned after reports he misled Trump administration officials about his contacts with Russia's ambassador to the U.S.
