Trump has repeatedly criticized Sessions' handling of the Justice Department, particularly in relation to the investigation into Russia's election interference.
And newly elected Utah Senator, Republican Mitt Romney, added that indeed, the Mueller investigation should continue unimpeded.
After President Donald Trump announced the firing of Attorney General Jeff Sessions on Wednesday, to be replaced by a person who had been publicly critical of the Special Counsel Robert Mueller's investigation of ties between the Trump campaign and Russian Federation in 2016, Dean called in to CNN to give his opinion. That goes beyond the scope of the appointment of the special counsel. The investigation is looking into U.S. allegations of Russian meddling in the election two years ago and any possible coordination between Russia and the Trump campaign, which the president denies.
Sessions' chief of staff, Matthew Whitaker, has been appointed as acting attorney general.
Sessions announced his plan to resign in a letter to the White House on Wednesday.
Trump said: "According to NBC News, Voters Nationwide Disapprove of the so-called Mueller Investigation (46%) more than they Approve (41%)".
Trump tweeted shortly after the resignation was announced, naming a temporary replacement of Sessions. He was a vocal critic of Mr Mueller, arguing in an op-ed for CNN past year that the probe should not go into the finances of Mr Trump and his family members. Or by people who have nothing to do with the Russian Federation investigation, said Prof Ohlin.More news: El Chapo faces biggest US drugs trial
More news: EAG participates at China International Import Expo
More news: Liverpool's hopes hang in balance after shock defeat to Red Star
Without Sessions' campaign or Russian Federation entanglements, there's no legal reason Whitaker couldn't immediately oversee the probe.
With the midterms over, Special Counsel Robert Mueller is believed to be preparing fresh indictments against Trump campaign figures, possibly including his son Donald Trump Jr. and a former campaign consultant Roger Stone, and could press for the president himself to answer questions.
Trump tweeted: "In all fairness, Nancy Pelosi deserves to be chosen Speaker of the House by the Democrats".
Sessions endured most of the name-calling in silence, though he did issue two public statements defending the department, including one in which he said he would serve "with integrity and honor" for as long as he was in the job. In that scenario, Mueller's budget could be reduced "so low that his investigation grinds to nearly a halt", Mr. Whitaker said during a July 2017 interview with CNN. This is the first time in U-S history a president attacks a Cabinet member as frequently and harshly in public.
He found satisfaction in being able to reverse Obama-era policies that he and other conservatives say flouted the will of Congress, including by encouraging prosecutors to pursue the most serious charges they could and by promoting more aggressive enforcement of federal marijuana law.
The broadsides escalated in recent months, with Trump telling an interviewer that Sessions "never had control" of the Justice Department.
We thank Attorney General Jeff Sessions for his service, and wish him well!