 West Virginia Independent Senator Joe Manchin was, until this year, a lifelong Democrat, but has left the party. Now sources tell ABC News he's considering re-registering as a Democrat to run against Vice President Kamala Harris for the presidential nomination. Mr. Manchin has been a Democratic wild card, often not supporting his own party's major bills when he was the deciding vote. Unclear how much support the party would give him if he runs. That's ABC's Andy Field.