In addition to those roles, he was previously a CNN legal commentator, and it was in that role that he wrote an op-ed previous year criticizing the Russian Federation investigation and the idea of looking into President Trump's financial ties to Russian Federation.
In a long-expected but still shocking move, President Trump fired Attorney General Jeff Sessions just hours after the 2018 midterm elections. "He will serve our Country well", Trump wrote on Twitter.
Senate Minority Leader Chuck Schumer was in the middle of giving his post-election spiel to reporters when the news broke of Attorney General Jeff Sessions' firing.
Trump said a new replacement will be nominated at a later date.
"I don't have an attorney general".
Asked whether Whitaker would assume control over Mueller's investigation, Justice Department spokeswoman Sarah Flores said Whitaker would be "in charge of all matters under the purview of the Department of Justice".
Trump has always been frustrated with Sessions, one of the president's earliest supporters, for recusing himself from matters related to the Russian Federation investigation in early 2017.
Tesla says SEC subpoenaed Mannequin three manufacturing data
Similarly, in May, Musk had made apparent the challenges Tesla was facing when it came to executing the company's plans for India. At the beginning of this year, however, the entrepreneur expressed the company's interest in the Indian market one more time.
Trump announced in a tweet that Sessions' chief of staff Matt Whitaker would become the new acting attorney-general. "It's very sad", Trump said during a scathing interview with Hill.TV in September. "Oh", he said. Then, bracing for the inevitable questions from reporters, he gave his immediate reaction: "protecting Mueller and his investigation is paramount", he said.
Special counsel Robert Mueller was appointed in May.
During a fiery press conference, which saw Mr Trump brand a CNN reporter an "enemy of the people", on Thursday the president did not answer questions about the attorney general, saying he was "extremely" satisfied with his cabinet.
Whitaker is a former U.S. Attorney and 2014 Senate candidate in Iowa who joined the Justice Department last fall.
Sessions was the first sitting senator to endorse Trump's 2016 presidential campaign, becoming one of his closest national security advisers.
Unlike Sessions, Whitaker is not recused from any campaign-related issues, as he was not part of the Trump campaign. Sessions' recusal prevented him from stopping the probe, which Trump has attacked as an unfair "witch hunt".