The delegation in Havana will begin negotiations on repairing five decades of strained relations . A U.S. official who spoke on background Monday said only the U.S. Congress could change those laws . In last few weeks , President Obama has eased U.S. sanctions on Cuba .
The delegation in Havana will begin negotiations on repairing five decades of strained relations . In last few weeks , President Obama has eased U.S. sanctions on Cuba .