Obstruction of justice

Former Chicago police Officer Jason Van Dyke attends his sentencing hearing at the Leighton Criminal Court Building, Friday, Jan. 18, 2019, in Chicago, for the 2014 shooting of Laquan McDonald. (Antonio Perez/Chicago Tribune via AP, Pool)

Ex-Officer Joseph Walsh, center, and his attorney Todd Pugh, right, chat as they walk in the courthouse Thursday, Jan. 17, 2019, in Chicago. Former Detective David March, ex-Officer Joseph Walsh and Officer Thomas Gaffney, three Chicago police officers accused accused of trying to cover up the fatal shooting of Laquan McDonald by officer Jason Van Dyke in October 2014, were acquitted by a judge on Thursday.(AP Photo/Nam Y. Huh)

FILE - in this Dec. 14, 2018, file photo, former Chicago police Officer Jason Van Dyke, left, appears for a hearing at the Leighton Criminal Court Building, in Chicago. More than three years after the stunning video of the Chicago police shooting of McDonald was made public, one judge on Thursday, Jan. 17, 2019 is scheduled to announce how long Van Dyke who pulled the trigger 16 times will be imprisoned, and another will say if she believes three other officers lied about what happened to protect him.(Antonio Perez/Chicago Tribune via AP, Pool, File)

Attorney General nominee William Barr speaks before the Senate Judiciary Committee on Capitol Hill in Washington, Tuesday, Jan. 15, 2019. Barr will face questions from the Senate Judiciary Committee on Tuesday about his relationship with Trump, his views on executive powers and whether he can fairly oversee the special counsel's Russia investigation. Barr served as attorney general under George H.W. Bush. (AP Photo/Carolyn Kaster)

Attorney General nominee William Barr speaks before the Senate Judiciary Committee on Capitol Hill in Washington, Tuesday, Jan. 15, 2019. Barr will face questions from the Senate Judiciary Committee on Tuesday about his relationship with Trump, his views on executive powers and whether he can fairly oversee the special counsel's Russia investigation. Barr served as attorney general under George H.W. Bush. (AP Photo/Carolyn Kaster)

Attorney General nominee William Barr takes his seat to testify during a Senate Judiciary Committee hearing on Capitol Hill in Washington, Tuesday, Jan. 15, 2019. Barr will face questions from the Senate Judiciary Committee on Tuesday about his relationship with Trump, his views on executive powers and whether he can fairly oversee the special counsel's Russia investigation. Barr served as attorney general under George H.W. Bush. (AP Photo/Carolyn Kaster)

FILE - In this Jan. 9, 2019, photo, President Donald Trump's attorney general nominee, William Barr, meets with Senate Judiciary Committee Chairman Chuck Grassley, R-Iowa, on Capitol Hill in Washington. As he did almost 30 years ago, Barr is appearing before the Senate Judiciary Committee to make the case he’s qualified to serve as attorney general. (AP Photo/J. Scott Applewhite)

This undated photo provided by Time Warner shows William Barr. Barr, criticized an aspect of the special counsel’s Russia investigation in an unsolicited memo he sent to the Justice Department. The memo was summarized to The Associated Press by a person familiar with it. It could factor into Barr’s confirmation hearings and prompt questions about whether he can be unbiased in overseeing the investigation. The document, sent in June, expresses concern with special counsel Robert Mueller’s investigation into whether Trump obstructed justice. (Time Warner via AP)

FILE - In this Feb. 14, 2018 file photo, Paul Manafort, President Donald Trump's former campaign chairman, leaves the federal courthouse in Washington. Manafort says in a statement that a Guardian report saying he met with Assange at the Ecuadorian embassy is "totally false and deliberately libelous." Manafort says that he has never been contacted by "anyone connected to WikiLeaks, either directly or indirectly." (AP Photo/Pablo Martinez Monsivais, File)