Some forecasting pros suggest the U.S. economy could top 5% growth in the period running from April to June, perhaps clearing the highest bar in 15 years. After a surprising drop in the U.S. trade deficit in May, a handful of Wall Street firms jacked up their estimates for the second quarter and more are likely to do so. Most notably, Macroeconomic Advisers raised its forecast to 5.3% from 4.5% for gross domestic product, the official scorecard for the U.S. economy. The firm’s forecast is one of the most detailed on Wall Street. A closely followed GDP tracker by the Atlanta Federal Reserve, meanwhile, estimates the ... (full story)