Question: who has the power to approve or veto legislation constitution
[{'answer': 'the President', 'provenance': [{'wikipedia_id': '74661', 'title': 'Veto', 'start_paragraph_id': 26, 'start_character': 88, 'end_paragraph_id': 26, 'end_character': 101, 'bleu_score': 1.0, 'section': 'Section::::United States.:Federal government.:Constitutional procedure.\n'}]}, {'provenance': [{'wikipedia_id': '74661', 'title': 'Veto', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9538494532916239811}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '74661', 'title': 'Veto', 'section': 'Section::::United States.:Federal government.:Constitutional procedure.\n', 'start_paragraph_id': 26, 'end_paragraph_id': 26, 'meta': {'evidence_span': ['Proposed legislation (a bill) that is passed by both houses of Congress is presented to the President,', "Proposed legislation (a bill) that is passed by both houses of Congress is presented to the President, in his capacity as head of the U.S. federal government. Likewise, legislation passed by both houses of a U.S. state legislature (or by Nebraska's unicameral legislature) are presented to the state governor."]}}]}, {'provenance': [{'wikipedia_id': '208645', 'title': 'Promulgation', 'section': 'Section::::Jurisdiction-specific details.:United States.\n', 'start_paragraph_id': 54, 'end_paragraph_id': 54, 'meta': {'evidence_span': ['Acts of Congress are given the force of law, in one of the following ways: signed by the President of the United States; neither signed nor vetoed by the President within ten days from reception (excluding Sundays) while the Congress is in session; or, when both the Senate and the House of Representatives vote, by a two-thirds majority in each chamber, to override a presidential veto during its session.', 'Acts of Congress are given the force of law, in one of the following ways: signed by the President of the United States; neither signed nor vetoed by the President']}}]}]