Former FBI Director Robert Mueller has been appointed as the special counsel to investigate any Russian interference in the 2016 Presidential Election and any possible ties to the Trump campaign. This is a big deal because according to ABC 7, just about everyone likes Mueller and thinks he's totally legit, and according to the New York Times, his special counsel status gives Mueller more independence in an investigation than allowed to federal prosecutors.

President Trump took to Twitter to express his frustration with the investigation.

Mueller's past might be of special interest to Bay Area residents. The 72-year-old native New Yorker and former Marine worked as a litigator for Pillsbury, Madison and Sutro in San Francisco from 1973 until 1976. He then went to work for U.S. Attorney for the Northern District of California in San Francisco where he eventually headed the criminal division.

Then Bob left us for awhile. He returned in 1998 when he was named U.S. Attorney for the Northern District of California, a post he held until 2001 when he became the head of the FBI on September 4, 2001. (Right?) NPR just put together a quick review of his tenure there and the mostly glowing praise it received.

After his stint running the FBI, Mueller came back and spent a year (from 2013 to 2014) as a professor and lecturer at Stanford University focused primarily on cyber-security. And now, Mueller is back in Washington DC to investigate "any links and/or coordination between Russian government and individuals associated with the campaign of President Donald Trump, and any matters that arose or may arise directly from the investigation."

This will likely include Trump's firing of former FBI director James Comey, who may or may not have been let go because of his investigation into Trump's ties with Russia.

"Bob was a fine U.S. attorney, a great FBI director and there's no better person who could be asked to perform this function. He is respected, he is talented and he has the knowledge and ability to do the right thing," California Senator and former San Francisco Mayor Dianne Feinstein told USA Today.

Related: Local Politicos React To Trump's Firing Of James Comey