Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
What was Mark Begich polling on October 6, 2008?

### Inputs:
table_name: table, columns: ['Poll Source', 'Dates administered', 'Democrat: Mark Begich', 'Republican: Ted Stevens', 'Lead Maragin']

### Response:
SELECT Democrat: Mark Begich FROM table WHERE Dates administered = October 6, 2008