President Trump claims that torture is effective. Then let him prove it. He should subject himself to waterboarding.
If torture works, Trump will confess that he's been lying about a host of issues including that his was the largest Inauguration crowd; that 5 million illegal aliens voted illegally in this past election; that a crowd of Muslims celebrated 9/11 in New Jersey; that Obama wasn't born in Hawaii; that he hadn't just lambasted the intelligence community before professing his love for it; and more.
But if, after waterboarding, Trump continues to assert these provable lies, then we'll have proof to show him and the American people that torture isn't effective.
Bring it on, Donald.