original_query: What is the electoral record being referred to in the text?
query: What is David Christopherson's electoral record?
answer: David Christopherson's electoral record includes various positions in municipal, provincial, and federal elections in Hamilton, Ontario, Canada.  Specific results and percentages are provided in chunks 15, 18, 19, 21, 22, and 23, including wins and losses for city council, provincial parliament, and federal parliament.  The details vary in the level of completeness presented.