Guatemalan President Alvaro Colom wrapped up a three-day trip to the United States Thursday urging President Barack Obama to push through a wide-ranging immigration reform program. During a meeting with Secretary of State Hillary Clinton, Colom handed her a letter asking Obama to take up immigration reform, which affects mostly illegal residents from Mexico and Central America. 'We asked her to deliver a letter to President Obama with our position... our support for comprehensive immigration reform,' Colom told reporters. Obama has said he hopes to press forward with an immigration reform agenda to help deal with the estimated 11 million undocumented people who live in the United States. Colom said he plans to propose on Monday a meeting between Obama and Central American member nations of the Rio Group of Latin American countries to discuss immigration reform. The regional group holds its annual meeting next week in Cancun, Mexico. Colom said he also spoke with the chief US diplomat about the anti-drug trafficking efforts and other bilateral issues. Obama clinched 61 percent of Latino votes in 2008, in part because of his vow to press for immigration reform, a goal that has stalled because of more pressing domestic priorities, including health care reform and repairing the stagnant US economy. 