CREATE TABLE table_75994 ("Source" TEXT, "Date" TEXT, "Goberman" TEXT, "Loera" TEXT, "Merkley" TEXT, "Neville" TEXT, "Novick" TEXT, "Obrist" TEXT, "Other/ Undecided" TEXT)

Which Date has a Novick of 26%?
SELECT "Date" FROM table_75994 WHERE "Novick" = '26%'
SELECT "Date" FROM "table_75994" WHERE "Novick" = '26%'