IRS chief Frank Bisignano may have misled Congress, Democrats say

Internal Revenue Service chief Frank Bisignano may have lied to Congress about staffing issues as the tax agency races to hire after making deep personnel cuts at the beginning of the Trump administration, a group of Senate Democrats led by Sen. Elizabeth Warren alleged in a letter sent late Wednesday and shared exclusively with CNBC.Bisignano, who is also the Social Security Administration commissioner, testified before Congress in March that he "feel[s] good about the number of employees [he] has right now" at the IRS. He also denied that his agency was understaffed before the Senate Finance Committee in April.Warren, D-Mass., and the other Democrats, however, said in the letter that Bisignano's testimony doesn't align with recent news reports that the IRS is aggressively surging hiring.