'We honestly regret the backward movement observed some months ago in the relations between the United States and Cuba. We are calling to a more comprehensive negotiation between both countries and the lifting of the blockade,' the letter read.
They also recalled in the letter that on November 1, 2017, the United Naitons General Assembly adopted a resolution on the need to put an end to the economic, trade and financial blockade of Cuba imposed by the United States.
'We Senators, members of the group of friendship, are remarking our support to the stance adopted almost unanimously at the United Nations,' the text read.
The letter sent to Pence was signed by the president of the group, Helene Conway-Mouret.
- Countries: Cuba