This week, National Farmers Union President Roger Johnson testified in front of the U.S. International Trade Commission. He told the group the Trans Pacific Partnership fails to deliver promised job, economic and trade growth. He says one of the major problems with the deal is its negative impact on the U.S. trade deficit.

He says the major flaw in the TPP is currency manipulation which drives down the value of U.S. exports while increasing other country’s product values.

Johnson says he thinks the ITC needs to weigh in on this problem.

Johnson says in 2014, the U.S. trade deficit soared to $508 billion, up six percent from the previous year, despite trade deals with 20 countries.