Political Violence Threats to Public Figures Donald Trump Political Assassination Gun Violence Security Failures Attempted Murder Public Safety Political Assassinations Political Figures Security Threats Public Figures Security Measures Suspects Threats Political Crimes Investigations High-Profile Cases Failed Assassination Security Lapses Thomas Matthew Crooks Poisoning Cases Chemical Weapons Conspiracy Theories Legal Proceedings Shooting Incidents Ryan Wesley Routh Security Breaches Conspiracy Queen Elizabeth II Incidents US Presidents Violence Trump Assassination Attempt Security Agencies Attempted Assassination of Donald Trump Law Enforcement Murder-for-Hire Attempted Assassination Trump Criminal Investigations Criminal Charges Ryan Routh Threat Assessment Threats Against Public Figures Failed Assassinations Russia's Federal Security Service (FSB) Presidential Assassinations Federal Criminal Charges International Crime Russian State Security Service Violence in Politics Criminal Acts Threats Against Officials Law Enforcement Response Political Crime Historical Assassination Attempts Legal Charges Novichok Poisoning Trump International Golf Club Incident Navalny's Poisoning Violent Incidents Investigation Political Extremism Federal Charges Criminal Suspects Nerve Agent Novichok Salman Rushdie Desperation Attempted Assassination of Trump Security Security Incidents John Hinckley Jr. Zakhar Prilepin Threats to Political Figures Motivations of Attackers Threat Intelligence Criminal Conspiracy Individuals Involved Security Issues Threats to Officials Impact on Public Figures Matthew Thomas Crooks International Law Historical Context Arrests Assassin Profiles Chemical Attacks Investigative Work Weapons Violations Firearm Offenses High-Profile Criminal Cases Legal Cases Historical Assassins Surveillance Ricin Poisoning Violent Crimes Hadi Matar Protective Services Protection Services