Chris Hayes sets the record straight on how protests are part of the American tradition, as Trump and Fox News push misinformation about peaceful demonstrations.

Transgender people have always been a central part of the LGBTQ+ movement, and we cannot allow them to be written out of history. (42586 signatures on petition)

During a Los Angeles press conference on Thursday, personnel accompanying Homeland Security Secretary Kristi Noem tackled and arrested Sen. Alex Padilla (D-Calif.) as he attempted to ask a question. Fox News national correspondent Bill Melugin tweeted the video of the confrontation, in which Padilla attempts to talk up to Noem as she's speaking. Several men immediately swarmed Padilla and attempted to drag him out of the room, despite him identifying himself as a U.S. senator. "I'm Senator Alex Padilla. I have questions for the secretary," Padilla said before he was dragged out of the room. "Because the fact of the matter is — hands off!" READ MORE: 'Changes are coming!' Trump appears stunned to learn farms rely on undocumented workers Padilla's staff also posted video of Padilla being thrown to the ground in the hallway with several officers kneeling on him while cuffing his hands behind his back. It remains unknown whether any formal charges will be filed against him. Reactions were indignant on social media, with both elected officials and commentators condemning the treatment of Padilla at the hands of law enforcement. Former CNN reporter John Harwood tweeted that he was no longer shocked at seeing actions like the tackling of Padilla, declaring that "we are living under corrupt authoritarian thugs." Bulwark podcaster Tim Miller wrote: "Who do these goons think they are? This is a press conference in a free country. It’s not a police state yet. Get your hands off our elected officials." "I cannot get over this: a United States Senator at a PUBLIC press conference in HIS HOME CITY was brutalized by people employed by our own government," tweeted Matt Norambuena, who is deputy press secretary for Sen. Jacky Rosen (D-Nev.) "Fascism off the charts." Actor John Cusack asked his followers if they've "had enough yet" after pointing out that "homeland security goons manhandle[d]" a sitting United States senator. Rep. Mark Takano (D-Calif.) opined that the Trump administration "cannot handle dissent of any kind," and that "they will rough up citizens, protesters, even U.S. senators." READ MORE: 'Embarrassing': Trump 'booed mercilessly' by Kennedy Center at 'Les Miserables' opening Watch the video of Padilla's arrest below, or by clicking this link. — (@)

While the California National Guard troops he commandeered from that state’s governor were guarding the federal detention center in Los Angeles, pockmarked with “fuck Trump” graffiti, our would-be emp...

The senator was forced to the ground and handcuffed, according to his office. He later met with Homeland Security Secretary Kristi L. Noem.

The Republican governors of Florida and Texas seem intent on intimidating protesters, days before Trump’s authoritarian-styled military parade in Washington, D.C.