President Obama is planning the longest U.S. presidential visit to Cuba . Cuba , which is not a member of the Organization of American States , is not invited to join the 34 other leaders . Obama announces a plan to help U.S. businesses access southern markets . The sixth Summit of the Americas wo n't mention Cuba , however . The hemisphere 's drug war is expected to be addressed .
President Obama is planning the longest U.S. presidential visit to Cuba . Obama announces a plan to help U.S. businesses access southern markets . The sixth Summit of the Americas wo n't mention Cuba , however . The hemisphere 's drug war is expected to be addressed .