Question: What was the percentage democrat Christine Gregoire was polling when the republican Dino Rossi was polling at 44% and the lead margin was 4?
SQL: SELECT "Democrat: Christine Gregoire" FROM "1-17538810-7" WHERE "Lead Margin" = '4' AND "Republican: Dino Rossi" = '44%';

Question: How many polls show a result where democrat Christine Gregoire was polling at 50% and had a lead margin of 2?
SQL: SELECT COUNT("Source") FROM "1-17538810-7" WHERE "Democrat: Christine Gregoire" = '50%' AND "Lead Margin" = '2';