A 31-year-old man pleaded not guilty to charges of attempting to assassinate President Donald Trump following a shooting incident at the Washington correspondents' dinner. Cole Tomas Allen faces federal charges related to the incident.

The case marks another security concern for the Trump administration and the Secret Service, adding to a series of threats against the president. Allen's arraignment occurred in federal court, where he entered the not guilty plea. Details surrounding the shooting remain under investigation by federal authorities.

The incident occurred during one of Washington's most prominent annual events, drawing immediate attention from law enforcement and national security officials. The case will proceed through the federal court system, with prosecutors building their case against Allen on attempted assassination charges.

This event underscores ongoing security challenges facing political figures in the United States and raises questions about protective measures at high-profile events.