Consumer prices in the United States picked up last month, a sign that inflation remains a persistent challenge for the Federal Reserve and for President Joe Biden’s re-election campaign, both of which are counting on a steady easing of price pressures this year. Prices rose 0.4% from January to February, higher than the previous month’s figure of 0.3%, the Labor Department said Tuesday. Compared with a year earlier, consumer prices rose 3.2% last month, above January’s 3.1% annual pace. N.C. State Professor Emeritus of Economics Mike Walden joined Jeff Hamlin on the WPTF Afternoon News to discuss the report.