Question: the early republicans (who evolved into today's democrats) were led by
[{'answer': 'Abraham Lincoln', 'provenance': [{'wikipedia_id': '4157940', 'title': 'History of the United States Republican Party', 'start_paragraph_id': 3, 'start_character': 21, 'end_paragraph_id': 3, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Hannibal Hamlin'}]