Former President Trump arrives to the Wilkie D. Ferguson Jr. United States Courthouse in Miami on Tuesday.

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Former President Trump arrives to the Wilkie D. Ferguson Jr. United States Courthouse in Miami on Tuesday. / Bloomberg/Getty Images

Former President Donald Trump pleaded 'not guilty' to 37 felony charges during a Miami federal court appearance. Trump is facing charges including obstruction of justice and unlawful retention of defense information.

Outside the courthouse, hundreds of Trump's loyalists gathered to rally in support of the former president.

Trump left Miami after his court appearance. Trump is the first former president in U.S. history to be charged with federal crimes

Here is what today looked like.

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Gregg Donovan shows his support outside the Wilkie D. Ferguson Jr. United States Courthouse before the arraignment of former President Trump.

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Gregg Donovan shows his support outside the Wilkie D. Ferguson Jr. United States Courthouse before the arraignment of former President Trump. / AFP via Getty Images

Police motorcycles used to escort the motorcade carrying former President Trump arrive at the Wilkie D. Ferguson Jr. United States Federal Courthouse.

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Police motorcycles used to escort the motorcade carrying former President Trump arrive at the Wilkie D. Ferguson Jr. United States Federal Courthouse. / Getty Images

Demonstrators against and supporters of former President Trump gather outside the Wilkie D. Ferguson Jr. United States Federal Courthouse.

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Demonstrators against and supporters of former President Trump gather outside the Wilkie D. Ferguson Jr. United States Federal Courthouse. / AFP via Getty Images

Former President Trump waves as he makes a visit to the Cuban restaurant Versailles after he appeared for his arraignment on June 13, 2023 in Miami, Florida.

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Former President Trump waves as he makes a visit to the Cuban restaurant Versailles after he appeared for his arraignment on June 13, 2023 in Miami, Florida. / Getty Images

Homeland Security Police Officers outside the Wilkie D. Ferguson Jr. U.S. Courthouse.

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Homeland Security Police Officers outside the Wilkie D. Ferguson Jr. U.S. Courthouse. / Miami Herald/Tribune News Service/Getty Images

Members of the Blacks for Trump supporter group, lead by Maurice Symonette (center), march in front of the Miami Federal Courthouse.

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Members of the Blacks for Trump supporter group, lead by Maurice Symonette (center), march in front of the Miami Federal Courthouse. / Miami Herald/Tribune News Service/Getty Images

Supporters of former President Trump pray during a demonstration outside of Trump Tower in New York City.

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Supporters of former President Trump pray during a demonstration outside of Trump Tower in New York City. / AFP via Getty Images

Members of the media run out of Wilkie D. Ferguson Jr. United States Federal Courthouse.

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Members of the media run out of Wilkie D. Ferguson Jr. United States Federal Courthouse. / AFP via Getty Images

People try to catch a glimpse of former President Trump as he leaves the Wilkie D. Ferguson Jr. federal courthouse.

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People try to catch a glimpse of former President Trump as he leaves the Wilkie D. Ferguson Jr. federal courthouse. / Getty Images

Former President Trump arrives to the Wilkie D. Ferguson Jr. United States Courthouse in Miami on Tuesday.

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Former President Trump arrives to the Wilkie D. Ferguson Jr. United States Courthouse in Miami on Tuesday. / Chandan Khanna/AFP via Getty Images

Miami Police Officers ride around the Wilkie D. Ferguson Jr. United States Federal Courthouse.

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Miami Police Officers ride around the Wilkie D. Ferguson Jr. United States Federal Courthouse. / Ricardo Arduengo/AFP Getty Images

A demonstrator runs in front of a motorcade of vehicles carrying former President Trump, at Wilkie D. Ferguson Jr. United States Federal Courthouse, in Miami.

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A demonstrator runs in front of a motorcade of vehicles carrying former President Trump, at Wilkie D. Ferguson Jr. United States Federal Courthouse, in Miami. / Ricardo Arduengo/AFP via Getty Images

Former President Trump arrives at the Miami International Airport on June 12, 2023.

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Former President Trump arrives at the Miami International Airport on June 12, 2023. / Getty Images

Supporters of former  President Trump gather outside Trump National Doral resort in Doral, Florida, on June 12, 2023.

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Supporters of former President Trump gather outside Trump National Doral resort in Doral, Florida, on June 12, 2023. / AFP via Getty Images

A supporter of former President Trump sits outside Trump National Doral resort in Doral, Florida, on June 12, 2023.

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A supporter of former President Trump sits outside Trump National Doral resort in Doral, Florida, on June 12, 2023. / AFP via Getty Images