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'This is the worst cover-up in human history'

More from Michael McCaul, a top Republican on the House Foreign Affairs Committee

Originally Published: 30 MAY 21 15:07 ET Updated: 30 MAY 21 16:01 ET By Chandelis Duster, CNN (CNN) -- Texas Rep. Michael McCaul, a top Republican on the House Foreign Affairs Committee, claimed Sunday the origins of the coronavirus pandemic…