HAVANA (AP) – President Obama says he believes the Cuban trade embargo is going to end, and while he can’t predict when that will be, he believes it will happen at some point because the embargo has not served the interest of the U.S. or the Cuban people.

Obama says the U.S. has exercised as much flexibility as it can to make modifications to the embargo, but the list of things his administration can do is growing shorter.

The bulk of changes will rely on Congress. He said that while Congress is not as productive as he would like during elections years, the large number of lawmakers making the trip to Cuba shows a growing interest in lifting the embargo.

Obama says that how quickly that Congress ends the embargo also will likely depend on how Cuba addresses concerns about human rights.