MEXICO CITY: President Enrique Peña Nieto on Tuesday proposed a constitutional reform that would legalize same-sex marriage across Mexico, making it join a handful of Latin American countries allowing such unions. Peña Nieto said he would send the landmark initiative to Congress after the Supreme Court last year declared it unconstitutional for states to ban same-sex marriage. “I do this with the conviction that the Mexican state must prevent discrimination for any motive and ensure equal rights to all,” he said on the government’s website. “This way, equal marriage will be clear in our constitution,” Peña Nieto said earlier at an event marking the national day against homophobia. The Mexican leader also added rainbow colors to his pictures on his Facebook and Twitter accounts, and met with representatives of the lesbian, gay, bisexual and transgender community.