Trump Announces US-South Korea Trade Agreement

The assessment is primarily based on a highly authoritative and relevant primary source from the United States Trade Representative (USTR), an official U.S. government body. The summary of this source indicates its archive for 2019 contains press releases that directly reference President Trump and the United States-Korea Free Trade Agreement. This is very strong evidence that an official announcement regarding a trade agreement was made during the Trump administration. The other provided sources are largely irrelevant or have low authority, and none provide credible contradictory evidence. For instance, several sources mention Trump's visits to South Korea but focus on other diplomatic issues like North Korea or Chinese trade, which does not negate the existence of a separate trade agreement announcement. One highly relevant source from an unverified Boston Globe account cannot be trusted due to its extremely low authority. Therefore, with a high-authority government source directly supporting the claim and no credible evidence to the contrary, the statement is very likely to be true.