On call to dig from pb I looked into joyful heart foundation. There 990 looks strange to me fluctuation from year to year. Not that good at reviewing them someone else may want to take a second look but ofcourse they report they participate in lobbying activities. There is more here for sure. https://apps.irs.gov/pub/epostcard/cor/721519537_201712_990_2019013116049122.pdf