U.S. markets closed mostly higher overnight, with the Dow Jones closing at record highs after the Federal Reserve felt confident enough in the economy to raise rates again. Investors also digested news of Congressional leaders reaching a tentative agreement on a tax overhaul plan.… - Dow up +120-points or +0.5%, the broader S&P500 slipped just -1 point or -0.05%, while the NASDAQ rose +0.4%.