Abigail Disney explains her calls for a wealth tax to fund coronavirus relief

Dozens of millionaires who call themselves “Millionaires for Humanity” have signed an open letter to their governments, asking to be taxed at a higher rate permanently to cover costs related to Covid-19. Abigail Disney, Emmy-award winning documentary filmmaker who is founder of Fork Films and host of the “All Ears” podcast, joins “Squawk Box” to discuss.