A setback could derail Donald Trump's agenda in the Congress. While economic growth data is flashing green, energy inflation and the domestic impact of tariffs could be dampeners." name="description">window.pageLoadStarted = (new Date()).getTime(). The November 3 midterm elections in the US are being billed as a referendum on President Donald Trump’s manner of governance and the war he has waged on Iran this year.A setback could derail his agenda in the Congress.