Trump's Justice nominee faces questions over Russia probePresident Donald Trump's nominee to lead the Department of Justice, Bill Barr, faces tough questions in the Senate next week on whether he intends to curb Special Counsel Robert Mueller's Russia collusion investigation. After the conservative lawyer criticized Mueller last year, opposition Democrats fear Barr as attorney general will protect Trump from the investigation and a possible impeachment effort arising from it. Mueller has spent 20 months investigating Russian interference in the 2016 election, and possible collusion between Trump's campaign and Russia, in a probe increasingly focused on Trump and his inner circle.