is still seething from last year's moment when biden overstepped on gay marriage, voicing support for it before the administration was ready to make an announcement. jim? >> long memories in washington. what about age, brian? is that considered a disqualifying factor for biden? >> it could be. i asked about all of that. he's going to be 74 years old on inauguration day 2017. if he is being sworn in as president, he will be the oldest person ever to take office in a first term. but many analysts now say he's in good enough health and age is no longer as big a factor as it was back in the day. also, you have to remember, hillary clinton is going to be 69 years old on that day. she's -- that would be about the same age ronald reagan was when he took office. >> that's right. he served two terms after that. thanks very much, brian todd. more now on the vice president's chances, other political news, with our great cnn team here. we have john stanton from buzzfeed, l.z. granderson in new york, cnn political commentator and mark preston, cnn political director, to talk 2016.