Erika Kirk honored her late husband Charlie Kirk on Friday by posting a heartwarming video of him teaching their daughter some of the basics of physics.

In the video, which had already garnered more than 1.3 million likes by Friday afternoon, the conservative activist sits at a table with their young daughter, playfully explaining Isaac Newton’s three laws of motion using her sippy cup and a pair of sunglasses.

The Turning Point USA founder then asks his daughter, “Any questions? “

Charile Kirk and his wife, Erika Kirk, and their two children, prior to his assassination on Sept. 10, 2025. (Erika Kirk via Instagram)

The tribute highlights Charlie Kirk’s role as a devoted husband and father. Since his assassination on Sept. 10, Erika Kirk has shared several intimate family moments, offering glimpses into what his life was like away from politics.

Charlie Kirk, who was killed during an event at Utah Valley University on Sept. 10, was survived by Erika Kirk and their two young children, whose names have not been made public.