replace justice steven breyer, whose confirmation hear aing he led back in 1994, faced her own. congressional correspondent chad pergram reports. >> good morning, judge jackson. >> good morning. >> reporter: senators asked about gender. >> can you provide a definition for the word woman? >> i can't. >> you can't? >> i'm not a biologist -- >> reporter: they asked about abortion. >> can an unborn child feel pain at 20 weeks? >> senator, john. >> you can bank as long -- bang as loud as you want. >> there's no point in responding, he's going to interrupt you. >> reporter: judiciary committee chairman dick durbin is responsible for piloting jackson's nomination through the senate, but i the man who picked jackson enjoys an unprecedented vantage point about the course his nominee faces. >> the truth, the whole truth and nothing but the truth so help you god? >> i do, mr. chairman. >> president biden presided over hearings for six supreme court