The president's lawyer and loquacious TV defender Rudy Giuliani scoffed at the thought that tweets could amount to obstruction.
A photo obtained by Politico Playbook showed both Special Counsel Robert Mueller and Donald Trump Jr., the president's eldest son, waiting at gate 35X at Reagan National Airport on Friday morning. His interest in them is the latest addition to a range of presidential actions he is investigating as a possible obstruction case: private interactions with Comey, Sessions and other senior administration officials about the Russian Federation inquiry; misleading White House statements; public attacks; and possible pardon offers to potential witnesses. "What's unusual here, what's different, is that the president has made so many public statements about the investigation, about the former FBI Director James Comey, about Attorney General Jeff Sessions, things that could be construed as trying to influence them".
Mr. Trump has navigated the investigation with a mix of public and private cajoling of witnesses.
Trump has publicly decried Sessions for removing himself from involvement in the Russian Federation investigation, rendering him unable to end the special counsel's probe.
"If it's accurate that the other person in the photo was Donald Trump Jr., Mr. Mueller was not aware of him and had no interaction with him".
"James Comey illegally leaked classified documents to the press in order to generate a Special Council [sic]?"
None of what Mr. Mueller has homed in on constitutes obstruction, Mr. Trump's lawyers said. Trump's lawyers have also said the president has a right to defend himself on social media.
"That is Mr. Mueller, waiting to board a flight", the special counsel's office said in a statement.