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

### Instruction:
Which Lead Margin has a Poll Source of rasmussen reports/ fox news?

### Inputs:
table_name: table, columns: ['Poll Source', 'Date administered', 'Democrat', 'Republican', 'Lead Margin']

### Response:
SELECT MIN Lead Margin FROM table WHERE Poll Source = rasmussen reports/ fox news