Epilogue:
Martha looked up at George with pride as she straightened his brown jacket. He smiled and took her hand.
"It's this day already," he said.
"You've come so far since we met the Doctor," his wife replied.
"President of the United States. I still remember that day. I'll get to see us from past." There had never been one day when either of the couple had not been affected by what the Doctor and his wife had shown them.
Later on he would look off the balcony into the crowd, making eye contact with his past self. And it would change his and Martha's lives forever.