Transcript for Joe Biden acknowledges some of his behavior made women uncomfortable
former vice president Joe Biden. What he now says, after four women have come forward to claim he acted inappropriately. Here's ABC's Mary Bruce. Reporter: Tonight, after five days of mounting pressure, former vice president Joe Biden is acknowledging that some of his behavior has made women uncomfortable and is trying to explain. I'm always trying to be, in my career, I've always tried to make a human connection. That's my responsibility, I think. I shake hands, I hug people, I grab men and women by the shoulders and say, you can do this. Reporter: And now, Biden is promising to change his ways, calling it his responsibility. Social norms have begun to change, they've shifted, and the boundaries of protecting personal space have been reset. And I get it. I get it. I hear what they're saying. I will be more mindful and respectful of people's personal space, and that's a good thing. That's a good thing. Reporter: With Biden's would-be campaign in crisis mode, president trump is relishing the moment. I was going to call him, I don't know him well, you was going to say, welcome to the world, Joe. You having a good time, Joe? Reporter: Trump himself has denied accusations of sexual misconduct, including sexual assault, by more than a dozen women. Today, Biden didn't apologize, and house speaker Nancy Pelosi has suggested he should. To say I'm sorry that you were offended is not an apology. I'm sorry I invaded your space, but not I'm sorry you were offended, because that's -- what is that? Reporter: Her advise to Biden? I'm a member of the straight arm club. I'm a straight armer. Just pretend you have a cold and I have a cold. Reporter: Tonight, advice the former vice president seems willing to take. I can adjust to the fact that personal space is important, more important than it's ever been. It's just not thinkable. I will. Vice president Joe Biden there today. The former vice president sending out that video message. Mary's live on the hill. And Mary, the vice president hasn't announced his campaign yet, but the mere fact that he would release this video certainly sends a signal he's about to run. Reporter: Well, David, Biden is responding to all of this like someone who is going to run for president. And a source tells us that these accusations do not impact his decision. And today, Biden announced his first public event since all of this began. He'll be speaking to union workers on Friday. David? Mary, thank you. And of course the other
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