NEW YORK/BOSTON (Reuters) - The U.S. Department of Labor on Friday finalized a rule clarifying that pension fund managers must put retirees’ financial interests first when allocating investments, rather than other concerns such as climate change or racial justice. The move by the department under the administration of U.S. President Donald Trump came ahead of Tuesday’s election and represents the latest in a series of efforts to make it harder to use investment assets to address social issues. Labor officials said that they made “significant changes” to the rule governing roughly $10 trillion in pension plan assets in response to over 1,000 comments they received, many critical.