user: Question: Which Tom Ridge* has a Poll source of Research 2000, and an Arlen Specter* of 43%?
Columns: ['Poll source', 'Dates administered', 'Arlen Specter*', 'Pat Toomey', 'Tom Ridge*', 'Peg Luksik']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Suffolk', 'May 13, 2010', '––', '60%', '––', '9%']
SQL:

assistant: SELECT "Tom Ridge*" FROM "Table" WHERE "Poll source" = 'Research 2000' AND "Arlen Specter*" = '43%';