WATCH: MSNBC anchor calls for the arrest of the President, Trump Jr., and Rudy Giuliani

"Are we a nation of laws? Or are we a nation of one man? Donald J. Trump called for the insurrection against the United States of America," Scarborough said. "He called for it."

Many leaders across the partisan aisle described the storming of the US Capitol as an insurrection. Few Republicans, however, have expressed support for the actions of the protesters, and President Trump himself asked them on multiple occasions to "go home."

Others criticized Trump's calls as weak, with Trump mixing his calls for the protesters to stand down with words of praise for their enthusiasm.

"Rudy Giuliani called for combat justice just an hour or two before this happened," Scarborough continued. Giuliani called for "trial by comment" hours prior to the storming of the Capitol, a medieval Germanic method of justice whereby two parties in an unresolvable dispute fight until one of them ones, with the winner declared to be correct. He did not, however, call upon supporters of the President to commit an insurrection against the United States government.

"Donald Trump Jr. said 'we are coming for you.' That's insurrection against the United States of America," Scarborough noted. It is unclear what exactly the President's son meant by the remarks.

"If Donald Trump Jr., Rudy Giuliani, and Donald Trump are not arrested today for insurrection and taken to jail and booked, and if the Capitol Hill police do not go through every video and look at the face of every person who invaded our Capitol, and if they are not arrested and brought to justice today, then we are no longer a nation of laws," Scarborough further asserted.

Many of the protesters involved in the storming of the Capitol have been arrested. However, without an explicit call for insurrection, the words of President Trump, Donald Trump Jr., and Rudy Giuliani are likely protected by the first amendment.

Scarborough finished by asserting that he held the same sentiments about rioters in Portland, Oregon "for months." While Scarborough initially defended the Portland protesters as "peaceful," he later called for the Portland Mayor and Oregon Governor to call in the National Guard to "keep their citizens safe from agitators and anarchists."