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

### Instruction:
Which Poll Source has a Republican Jim Risch of 43%?

### Inputs:
table_name: table, columns: ['Poll Source', 'Dates administered', 'Democrat: Larry LaRocco', 'Republican: Jim Risch', 'Lead Margin']

### Response:
SELECT Poll Source FROM table WHERE Republican: Jim Risch = 43%