The Fed has more firepower to bring to bear if needed. Cleveland Fed chief Loretta Mester, also a 2020 voter, said Friday that the central bank was “likely not done” in seeking ways to keep credit flowing in the economy. “We’re always looking for things where if we have a tool to be able to do it, and if we think it’s needed, we’re going to do it,” she told an online forum hosted by the City Club of Cleveland. The economic pain is already severe. Almost 17 million people have filed for U.S. unemployment benefits in the last three weeks, implying a jobless rate of around 13% or 14%, with output in the second quarter expected to shrink sharply. Fed Chairman Jerome Powell on Thursday cautioned that the slowdown was striking with “alarming speed” and that unemployment would temporarily hit very high levels.