user: Question: What poll source claimed that Republican: Kenny Hulshof had 43%?
Columns: ['Poll Source', 'Dates administered', 'Democrat: Jay Nixon', 'Republican: Kenny Hulshof', 'Lead Margin']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Public Policy Polling', 'November 2, 2008', '57.9%', '38.4%', '19.5']
SQL:

assistant: SELECT "Poll Source" FROM "Table" WHERE "Republican: Kenny Hulshof" = '43%';