Ty Cobb, President Trump's newest attorney in various Russia investigations, said Wednesday he thinks "very highly" of special counsel Robert Mueller.

Mueller was appointed by the Justice Department to investigate Russia's election interference and whether the Trump campaign conspired with Moscow after the president fired FBI Director James Comey.

"I have a very respectful and professional relationship with Bob Mueller. I think very highly of him," said Cobb, who starts Monday as White House special counsel, said in an interview with Politico.

Cobb, a Washington white-collar lawyer who in the 1990s represented Democrats under investigation during the presidency of Bill Clinton, will help manage Trump's personal legal team, with a focus on communications. Politico says Cobb met Wednesday with Anthony Scaramucci, the incoming White House communications director, who both report directly to Trump.

Cobb's hiring is part of a larger shakeup of Trump's legal team.

Marc Kasowitz, who has been the lead lawyer defending Trump in matter related to investigations into Russian interference in the 2016 election, is taking a reduced role, according to reports last week. John Dowd replaced Kasowitz as the president's lead outside lawyer, with Jay Sekulow playing a role on the team as well.

Also last week, Mark Corallo, a spokesman for Trump's legal team, resigned.

Corallo, a former spokesman for the Justice Department, reportedly had been pushing back against any public criticism of Mueller.

The Washington Post recently reported some of Trump's lawyers are discussing the president's authority to grant pardons and aim to figure out ways to limit or undercut Mueller's investigation.

Trump has expressed concern that Mueller could look into business deals the president made when he worked in the private sector, and he has criticized the special counsel for bringing on some people who have donated to Democrats to help with the Russia probe.