@CNN: Longtime noted Amtrak traveler Joe Biden ran into a familiar 2020 contender on the train today: Sen. Kamala Harris of California https://t.co/uBGRsxGRuQ https://t.co/8yO4chP6i7

@CNN: Longtime noted Amtrak traveler Joe Biden ran into a familiar 2020 contender on the train today: Sen. Kamala Harris of California https://t.co/uBGRsxGRuQ https://t.co/8yO4chP6i7