Zach Wahls and Moms on Lawrence O'Donnell

Zach Wahls, the University of Iowa student who spoke against the proposed amendment to repeal marriage equality, spoke to Lawrence O'Donnell with his mothers and sister.

Wahls appeared with his sister, Zebby, and his mothers, Terry Wahls and Jacqueline Reger, who married in Iowa in 2009 after the state supreme court ruled for marriage equality.

Earlier this week, the 19-year-old drew national attention for his speech before the Republican-controlled Iowa house of representatives voted to advance a constitutional amendment that would repeal marriage equality and ban civil unions and domestic partnerships. Senate majority leader Michael Gronstal has vowed to block debate on the amendment in his chamber.

Wahls told O'Donnell that the reaction to his speech has been "overwhelming," but as an engineering student, he is not considering a career in politics right now. His mothers and sister expressed their pride in their son and brother.