Question: who has the power to reject the president's nominations for the supreme court
[{'answer': 'the Senate', 'provenance': [{'wikipedia_id': '24827215', 'title': 'Appointment and confirmation to the Supreme Court of the United States', 'start_paragraph_id': 1, 'start_character': 414, 'end_paragraph_id': 1, 'end_character': 424, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]