Mooney supported "Texas v. Pennsylvania", a failed attempt to overturn the 2020 United States presidential election. In the days leading up to the 2021 United States Electoral College vote count, Mooney stated that he had not decided if he would vote to certify or not, choosing to decide on the House Floor after listening to debate. Mooney did not support the Arizona objection to the certification, which was sponsored by Senator Ted Cruz. Mooney was in the House Chambers listening to the certification debate when the 2021 storming of the United States Capitol happened. Mooney hid in the gallery with other congressmembers before being removed from the gallery to a safe place.