'That’s my dad!': Gus Walz tearfully cheers on his father as he accepts Democratic VP nomination

Gus Walz sat in the front row for the biggest moment of his father's life, and his pride exploded out of him.

“That's my dad!” the 17-year-old could be seen saying. He stood, tears streaming down his face, and pointed to his father, Tim Walz, the governor of Minnesota, who was accepting the Democratic nomination for vice president in a speech to thousands of people in a packed arena and millions more watching at home.

The teen's exuberance captured hearts and went viral, becoming perhaps the defining image of his father's address and further humanizing a running mate picked by Vice President Kamala Harris in no small part for his everyman appeal.

Gus wept through much of his father's speech, and when it was over, climbed on stage with his family and wrapped his dad in a tight bear hug, burying his face in his shoulder.