To accurately determine whether President Obama issued a declaration about Labor Day in 2016 according to the article, I would need to have access to the specific article you are referring to, including its publication date. Since I don't have access to external articles or their content, I can't confirm the accuracy of the statement.
If you could provide details about the article or its publication date, I would be happy to help clarify whether the statement is true or false based on that information!