Jackson would replace Graham Platner, who left the race against incumbent Sen. Susan Collins amid sexual assault allegations.
‘He is an anti-American, anti-government extremist,’ an FBI official said, adding that he made anti-ICE comments during the arrest.
The companies are prevented from finalizing the transaction for at least 14 days.
A petition garnering nearly 12,000 signatures helped spur opposition to the university’s plan to acquire and demolish the historic home by eminent domain.

An attorney for the brothers said that they are innocent.
The company says the new missile is designed to counter drones, cruise missiles, and ballistic missiles while using existing Patriot infrastructure.
The current system gives many students no fixed departure date. The new rule says that after four years, a student must apply for an extension.
The alert was issued after the United States launched strikes against Iran for a ninth straight day on Sunday evening .
Massachusetts and Maine are the only two states that currently have comprehensive right-to-repair laws for car owners.
The president was at the stadium to watch the highly anticipated match between Spain and Argentina.
Almost 10,000 training schools have now been removed from the Transportation Department’s Training Provider Registry.
Sixteen U.S. troops have been killed since the start of the conflict with Iran on Feb. 28.
Cook attributes the potential GOP advantage to the redrawn district maps that favored the party nationally in 2025 and earlier this year.
The rule change is aimed at reducing the need for foreign oranges in American orange juice, following decades of citrus greening disease lowering sugar content.
The Trump administration had sought to implement a six-figure fee for H-1B visa applications, but a federal judge blocked the move.
At-risk people were advised to remain indoors because of poor air quality.
The new restrictions take aim at foreign nationals linked to radical organizations accused of supporting political violence in the United States.
The White House released the files while President Trump addressed the nation on Thursday.