The Justice Department reportedly declined to prosecute the former FBI director because there wasn't enough evidence showing he intended to break the law.
The former special counsel did not want to testify before Congress, and it showed.
“We decided that we did not want to exercise our subpoena powers because of the necessity of expediting the end of the investigation," Mueller said.
If the Justice Department couldn't charge Trump, it shouldn't have investigated his conduct in the first place, GOP lawmakers argued.
A growing majority of Republicans now agree the special counsel's investigation was fair, according to a new Pew Research Center survey.
The former special counsel is preparing for his highly anticipated public testimony on his report before two House committees on Wednesday.
Time for Mueller to tell it like it is, says the former deputy attorney general.
The president wagged his finger at the Russian leader and told him not to meddle in the U.S. election.
The #MuellerTime hashtag went viral after the announcement that the former special counsel would answer questions before Congress in July.
The special counsel is set to testify in open session before Congress on July 17 about his investigation into Russian interference in the 2016 elections.
President Donald Trump also told ABC News that he never told Don McGahn to fire special counsel Robert Mueller, despite McGahn's testimony.
The Fox News host gives the network's viewers a reality check with "10 instances of apparent obstruction of justice."
The president dismissed the one-time counsel to President Richard Nixon as a "sleazebag."
But the Vermont senator cautioned that the Senate is unlikely to convict President Donald Trump and oust him from office.
"So... uh... you know, then-then, you know, we need some kind of heads up."
Intelligence officials reject claims that "spying" occurred during the 2016 election, but the president keeps calling for an investigation.
The Michigan congressman continues to say that the president has "engaged in impeachable conduct."
Rep. Justin Amash of Michigan became the first Republican congressman to call the president's conduct "impeachable."
The president's son struck a deal Tuesday with the Senate Intelligence Committee for a private, limited interview, according to The New York Times.