Jon Bruning in The Associated Press

On Principles & Values: OpEd: Became multimillionaire while serving in public office

Stenberg reiterated criticisms he's aimed at Bruning throughout the campaign: That Bruning has become a multimillionaire while serving in public office and that in 2007, Bruning attempted to waive a $1 million settlement with Lincoln-based student loan company Nelnet after the company was accused of improper business practices. A year later, Bruning entered a time-share agreement on a nearly $700,000 vacation home with two Nelnet executives.

In response, Bruning declared he would not "throw mud" at his opponents, then said "South Carolina has two senators... they don't need a third," implying that Stenberg would be beholden to South Carolina's Sen. Jim DeMint, a tea party leader who has endorsed Stenberg.