She confirmed that the organisation's "American Comeback Tour" and annual AmericaFest conference would proceed as planned, despite her husband's death.
Kirk shared a poignant moment about her three-year-old daughter asking "Where’s daddy?" and expressed gratitude to President Donald Trump and his family for their support.
The suspect in Charlie Kirk's assassination, Tyler Robinson, 22, is in custody and expected to appear in court, having been identified by his father after confessing to the crime.