Question: What was the lead margin when Nixon had 48% and reporting was done by rasmussen reports?
SQL: SELECT COUNT("Lead Margin") FROM "2-17538810-10" WHERE "Democrat: Jay Nixon" = '48%' AND "Poll Source" = 'rasmussen reports';

Question: What are the dates where Hulshof had 37% and Nixon had 48%?
SQL: SELECT "Dates administered" FROM "2-17538810-10" WHERE "Republican: Kenny Hulshof" = '37%' AND "Democrat: Jay Nixon" = '48%';