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

### Instruction:
Which poll shows Democrat Mary Landrieu with 53% against Republican John Kennedy?

### Inputs:
table_name: table, columns: ['Poll Source', 'Dates administered', 'Democrat: Mary Landrieu', 'Republican: John Kennedy', 'Lead Margin']

### Response:
SELECT Republican: John Kennedy FROM table WHERE Democrat: Mary Landrieu = 53%