CREATE TABLE table_47386 ("Poll Source" TEXT, "Dates administered" TEXT, "Democrat: Brian Schweitzer" TEXT, "Republican: Roy Brown" TEXT, "Libertarian: Stan Jones" TEXT, "Lead Margin" FLOAT)

What is the percentage for Schweitzer when the lead margin is 29?
SELECT "Democrat: Brian Schweitzer" FROM table_47386 WHERE "Lead Margin" = '29'
SELECT "Democrat: Brian Schweitzer" FROM "table_47386" WHERE "Lead Margin" = '29'