Mexican President Felipe Calderon on Tuesday proposed a runoff vote in future presidential elections and re-election for lawmakers and mayors as part of sweeping political reforms. Calderon -- who won disputed July 2006 elections with a margin of less than one percent -- also proposed reducing the country's numerous deputies, amid debate over ways to increase political accountability here. Conservative Calderon, of the National Action Party (PAN) said the reforms would strengthen democracy in a country which was governed for decades by a single party -- the Institutional Revolutionary Party (PRI). Under the proposal, lawmakers could stay in office for up to 12 years, and their numbers would fall from 500 to 400. The number of senators would be reduced from 120 to 96. The Senate and Chamber of Deputies are now set to discuss the proposed changes. Calderon did not seek to extend the single six-year presidential term, amid a growing trend to extend presidential term limits across the region. 