Romney launches 30-second TV ad in Illinois lumping the Pennsylvanian in with POTUS, calling him “another economic lightweight.”

Announcer: “Santorum’s ‘real weakness is the economy.’ He’s never run a business or a state.”

Read the script below.

ANNOUNCER: “Who can turn around the economy and defeat Barack Obama? Not Rick Santorum. Santorum’s ‘real weakness is the economy. He’s never run a business or a state. His plan: ‘economic illiteracy,’ ‘inexcusable,’ ‘the worst idea’ of any GOP candidate. Rick Santorum: Another economic lightweight. Mitt Romney: Ready to ‘lead the nation to a new era.’ With ‘the boldest GOP agenda since Reagan.’”