If anything, the trustees’ economic assumptions were likely too optimistic, estimating that gross domestic product would be 6% higher at the end of the 10-year projection period than does the non-partisan Congressional Budget Office. Were CBO’s economic assumptions used, the challenges facing Social Security and Medicare would appear even greater. Other aspects of the administration’s economic agenda, such as the trade wars it is attempting to incite with long-time allies in North America and Europe, are more likely to shrink the economy than grow it.