Metropolitan Detention Center via ReutersA failed Republican political candidate who allegedly plotted to shoot up Democratic officials’ homes has a checkered legal history, including a 2008 conviction for his role as head of a burglary ring.Solomon Peña won just 26 percent of the vote in his bid for New Mexico’s 14th House district. Despite the loss, he refused to concede, calling the race “rigged,” and showing up to the homes of elected officials to complain. In January, he’s accused of going