A top Republican senator has avoided ruling out the suggestion that President Donald Trump could face an obstruction of justice probe.
Sen. Chuck Grassley of Iowa, the top Republican on the Senate Judiciary Committee, replied when asked about a potential investigation that a decision had not yet been taken, according to the Independent.
Accusations have been made by Democrats that Trump obstructed justice by firing FBI Director James Comey in May.
Comey testified to a Senate committee June 8 that Trump had pressured him to end the FBI investigation into retired Lt. Gen. Michael Flynn, the former national security adviser.
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In testimony before the Senate Intelligence Committee June 13, Attorney General Jeff Sessions refused to confirm whether he had discussed the issue of Comey's handling of the investigation into alleged cooperation between the Trump campaign and Russia with Trump.
"I am not able to discuss with you or confirm or deny the nature of private conversations that I may have had with the president on this subject or others," Sessions told the SIC, according to the Washington Post.
Some believe that enough evidence already exists to justify the beginning of an investigation.
Asked about whether an obstruction of justice probe could be launched, former New York U.S. attorney Preet Bharara said in an ABC News interview June 11, "there's absolutely evidence to begin a case."
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Bharara was fired from his post by Trump in March. He noted that watching Comey's firing "felt a little bit like deja vu."
"No one knows right now whether there is a provable case of obstruction," said Bharara. "[But] there's no basis to say there's no obstruction."
The former U.S. attorney said that Trump made contact with him directly after coming to office, a move Bharara thought was "a very weird and peculiar thing." He alleged that his refusal to speak one-on-one with Trump cost him his job.
"The call came in. I got a message. We deliberated over it, thought it was inappropriate to return the call. And 22 hours later I was asked to resign along with 45 other people," he said.
On June 12, Democratic Rep. Brad Sherman of California circulated a draft article of impeachment to his colleagues in the House. Sherman justified the article by contending that Trump had engaged in obstruction of justice.
"As the investigations move forward, additional evidence supporting additional Articles of Impeachment may emerge," said Sherman, the Washington Examiner reported. "However, as to Obstruction of Justice and 18 U.S.C.1512 (b)(3), the evidence we have is sufficient to move forward now. And the national interest requires that we do so."