The two attorneys representing the official who reported the phone call that spurred an impeachment investigation of the president urged Congress to bolster protections for future whistleblowers.

Andrew Bakaj and Mark Zaid wrote an opinion piece for the New York Times calling for Congress to strengthen whistleblower protection laws, arguing that their former client faced a “sustained campaign of intimidation” after filing a complaint about President Trump’s July 25 phone call with Ukrainian President Volodymyr Zelensky.