Washington (CNN) As part of a partnership with FactCheck.org, CNN's Jake Tapper breaks down why Donald Trump's claim that the unemployment rate is at 42% is inaccurate. That figure would include stay-at-home parents, retirees, teenagers and anyone else who doesn't need or want to work. The unemployment rate is actually 4.9% for January.

If Trump wanted to include the underemployed (part-time workers wanting full-time work) and the "marginally attached" (those who have given up looking for a job but had looked for one in the past year), then he could use 9.9% as his number for the underemployed and the unemployed. That's the Bureau of Labor Statistics' "U-6″ measurement of labor underutilization, its most comprehensive statistic on those who are underemployed or unemployed but want to work.