Vizcarra was involved in the election campaigns of his brother Martín, assisting him in the
2006 Peruvian general election and the
2011 Peruvian general election. He has long been involved as a member of his brother's political party, Peru First, serving as a member of the party's National Political Commission since 2015. In August 2025, Vizcarra was placed in preventative detention due to corruption allegations involved reported embezzlement. In the poll, about 71% of respondents made the mistake of believing Mario was Martín. Despite this, a later poll showed Vizcarra becoming the second most popular presidential candidate by mid-October 2025. After his brother's disqualification was upheld, Vizcarra filed as a candidate and was selected as Peru First's nominee in December 2025. Peru First appealed and the decision was reversed, allowing him to proceed with his campaign. == References ==