(Las Vegas CBS KXNT)  A Las Vegas campaign rally for Republican presidential nominee Mitt Romney has drawn approximately 3,500 supporters.

A gaggle of protestors outside the Cox Pavilion heckled the long line of Romney supporters waiting to enter the event.  Holding signs that said “47 percent,” they chanted “Thank you for Romneycare!” and other slogans.

Attendees said their top concerns are the economy, overregulation of business, and foreign policy.