Honduran President Manuel Zelaya was arrested Sunday by troops who surrounded his home ahead of a controversial constitutional referendum, a top government aide said. "Troops have taken the president from his home to the air force (base)," the president's personal secretary, Enrique Reina, told reporters. Elected in 2006 for a non-renewable four-year term, Zelaya had planned a vote Sunday asking Hondurans to sanction a future referendum to allow him to run for reelection.