Question: the majority whip in the us senate is
[{'answer': 'John Cornyn'}, {'provenance': [{'wikipedia_id': '46507', 'title': 'Party leaders of the United States Senate', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 219, 'bleu_score': 0.646672567013147, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3039368623024960937}, 'section': 'Section::::Current floor leaders.\n'}]}]