PRI's The World Published by PRI's The World California's undocumented workers help the economy grow – but may pay the cost Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/741782/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend California has the largest economy in the US. It's also the state with the most immigrants. These two facts are not unrelated, but the way immigrants build that economy is complex.