Eight years ago, when Republicans were outside the White House, their political advertising in Tennessee largely stuck to a single formula.
"You would take a picture of the Democratic candidate. Put a picture of Barack Obama on one side," says Kent Syler, a professor of political science at Middle Tennessee State University. "You know, throw in some Nancy Pelosi. And link them to that national ticket."
It worked. But Democrats are unlikely use the same playbook to turn Tennessee voters against the GOP.