WASHINGTON (AP) – Former special counsel Robert Mueller has finished testifying before Congress. Mueller testified before two committees on Wednesday for more than six hours on his 448-page report on Russian interference in the 2016 election. Mueller said the interference was not a hoax, and it was not an isolated episode. He warned that there should be a more robust effort to guard against future interference. Mueller also dismissed President Donald Trump’s claim of “total exoneration,” saying it’s not what his Russia report said. Mueller told lawmakers on the House Judiciary Committee that investigators did not exonerate Trump of obstruction of justice. He made the statement in response to questions from the committee’s chairman, Rep. Jerrold Nadler, a New York Democrat. Mueller’s report said the investigation did not find sufficient evidence to establish charges of a criminal conspiracy between the Trump presidential campaign and Russia. But it said investigators did not clear Trump of trying to obstruct the probe. A redacted version of the 448-page report compiled by Mueller’s team was released by the Justice Department in April.