Question: who plays elizabeth mccord's brother on madam secretary
[{'answer': 'Eric Stoltz', 'provenance': [{'wikipedia_id': '48141886', 'title': 'Elizabeth McCord (character)', 'start_paragraph_id': 4, 'start_character': 216, 'end_paragraph_id': 4, 'end_character': 227, 'bleu_score': 1.0, 'section': 'Section::::Biography.\n'}]}, {'provenance': [{'wikipedia_id': '48141886', 'title': 'Elizabeth McCord (character)', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 461, 'bleu_score': 0.9321992460304711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7366285565055468437}, 'section': 'Section::::Biography.\n'}]}]