Marie Follayttar Smith, executive director of Mainers for Accountable Leadership, said rallies were also held in Bangor, Brunswick, Augusta, Lewiston, Belfast, Kittery and Rockland. It includes questions about a 2016 Trump Tower meeting involving the president's son Donald Trump, Jr., and a Kremlin-connected lawyer offering damaging information about Democrat Hillary Clinton.
One organizer for Capital Area Indivisible, Jessica Gorton of Readfield, has helped organize other area events for the group, including the 2017 Women's March.
Whitaker now becomes Mueller's new boss and will likely be sympathetic towards Trump.
Mitchell Jr. said Whitaker was improperly empowered, bypassing deputy Attorney General Rod Rosenstein, and argued that as a vocal opponent of the Mueller probe, Whitaker is in a conflict of interest.
The Augusta protest brought out newly elected Kennebec County District Attorney Megan Maloney, who accused Trump of "sidestepping the law" in an apparent attempt to halt the investigation.
"According to the chain of command, (Rosenstein) should be the attorney general", Gorton said.
Indivisible member Eileen Kreutz, of Industry, traveled to attend the protest after hearing about it through communications from Indivisible.
One reason Sessions endured months of taunting from Trump is that he believed he was protecting the integrity of the Justice Department and was trying to prevent the president from bringing in someone who would politicize it, according to a USA official who has worked with Sessions and frequently talked with him.
"We're here because we love our country and our democracy and our democracy is at risk", Ewing-Merrill said.
Trump's comments came as a growing sense of concern developed inside the White House over the negative reaction to Whitaker being tapped as the acting chief law enforcement official.
She said Graham's newest remarks on the Sessions replacement is "a tap dance that's getting old".
Trump also said that although "I like" former New Jersey Governor Chris Christie, he hasn't spoken to him about being a candidate to replace Sessions.
Trump Jr. has reportedly told pals he is anxious about being arrested this week following the midterm elections and the firing of top United States lawman Jeff Sessions. "And that is a problem for all of us". She said the "resistance" needs to be ready to react if Trump fires Mueller.
"If the president seeks to interfere in the impartial administration of justice, the Congress must stop him", Adam Schiff said.
Gorton added that the protest was a success, even though political activists are probably run ragged from Tuesday's elections.
Of the scrutiny Whitaker is facing, Trump said: "It's a shame that no matter who I put in they go after".
Moscow has denied US security agencies' allegations that it interfered in the election in a bid to help Trump.
He said that other former Trump associates Paul Manafort, Michael Cohen and Trump Organization CFO Allen Weisselberg are all cooperating with the government, and that the "public needs to see the results" of the probe.