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Special Counsel Robert Mueller has requested the White House keep all documentation related to the meeting between Donald Trump Jr. and a Kremlin-linked lawyer, a person familiar with the decision told CNN. "[T]he Special Counsel's office is investigating the Russian government's efforts to interfere in the 2016 presidential election, including any links or coordination between the Russian government and individuals associated with the campaign of Donald Trump," Mueller's letter read. "Information concerning the June 2016 meeting between [Trump Jr.] and Natalia Veselnitskaya is relevant to the investigation."
The request covers text messages, emails, voicemail, and other communications.
Meanwhile, President Trump and some of his lawyers are actively looking at ways to undermine, discredit, or fire Mueller, including compiling a list of potential conflicts of interest that might be used to force him out, The New York Times and The Washington Post report. The effort has apparently ramped up as Mueller begins digging into Trump's financial history, and Trump is reportedly especially concerned that Mueller can access his tax returns.