Question: What was the lead margin when Schweitzer had 55% and Jones had 2%?
SQL: SELECT SUM("Lead Margin") FROM "2-17538810-3" WHERE "Democrat: Brian Schweitzer" = '55%' AND "Libertarian: Stan Jones" = '2%';

Question: What is the percentage for Brown when the lead margin is 26?
SQL: SELECT "Republican: Roy Brown" FROM "2-17538810-3" WHERE "Lead Margin" = 26.0;

Question: What is the percentage for Schweitzer when the lead margin is 29?
SQL: SELECT "Democrat: Brian Schweitzer" FROM "2-17538810-3" WHERE "Lead Margin" = 29.0;

Question: What is the largest lead margin when Schweitzer has 55% and Jones is not an option?
SQL: SELECT MAX("Lead Margin") FROM "2-17538810-3" WHERE "Democrat: Brian Schweitzer" = '55%' AND "Libertarian: Stan Jones" = 'not an option';