There's a shortage of skilled tradespeople throughout the American economy, and it is a persistent problem that started well before the pandemic. But what's behind that gap and what can be done? Paul Solman reports for our series, "Work Shift", which focuses on navigating the job market in a post-COVID economy. Stream your PBS favorites with the PBS app: https://to.pbs.org/2Jb8twG Find more from PBS NewsHour at https://www.pbs.org/newshour Subscribe to our YouTube channel: https://bit.ly/2HfsCD6 Follow us: Facebook: http://www.pbs.org/newshour Twitter: http://www.twitter.com/newshour Instagram: http://www.instagram.com/newshour Subscribe: PBS NewsHour podcasts: https://www.pbs.org/newshour/podcasts Newsletters: https://www.pbs.org/newshour/subscribe