having an impact. and i hope it makes us a better people and it makes us more committed to the principles of freedom. look, you recognize that in the history of the world, authoritarianism has been the default setting. and to have freedom, it requires people to stand up and protect it. and you're seeing the terrible miscalculation by vladimir putin causing the kind of commitment to freedom that we had hoped we would see. >> let's try to go back in time a little bit, senator. do you think it was a mistake for president biden to rule out u.s. troops on the ground instead of trying to use what's known as strategic ambiguity to deter president putin from attacking in the first place? >> it wouldn't be ambiguity.