The thing is...he's not had to withstand any attacks on his "integrity," such as not holding a job until age 40, and squandering decades of top-level income on who-knows-what.  Does he have integrity? We have no idea, because we know hardly anything about him. He's been a non-player so his weaknesses haven't been exposed, whileHillary's been subjected to nasty attacks from the Republicans for decades. There's nothing new they can go after her on. It will just be the same tired attacks on her looks, gender, husband's behavior, and fictional indictments. People don't know anything about Sanders. Notice the republicans are mum on him. They are waiting until it matters to eviscerate him, and they would. He'd be toast. Done.  But, he won't be the nominee, and that's good, because he'd never hold up under that scrutiny or pressure.