In my class, we are doing a mock trial about Dred Scott vs Sanford. We each have roles and I...

In my class, we are doing a mock trial about Dred Scott vs Sanford. We each have roles and I am Daniel Webster, a witness for Dred Scott. I need to come up with questions and answers to attack the guy who is for slavery, John C. Calhoun, John Sandford's witness. I only have 9 more questions and answers to do, help, please