The House select committee on China will feature four high-profile witnesses during its first hearing Tuesday at 7 p.m. ET, including former President Donald Trump's national security adviser, H.R. McMaster, and top China expert and former deputy national security adviser, Matthew Pottinger, sources familiar with the hearing told CNN.

NPR's Steve Inskeep speaks with Republican Congressman Mike Gallagher of Wisconsin, chairman of the China select committee, about the economic and security challenges posed by Beijing.