Sen. John Ensign's approval rating has dropped 14 points from last month -- before his nine-month extramarital affair was revealed -- a new Las Vegas Review-Journal/Mason-Dixon survey finds (June 18-19, 625 RV, MoE +/- 4%). With a 39% approval rating, Ensign's disapproval rating also increased to 37%, up 19 points from last month.

Still, 62% of voters think Ensign should not resign from the Senate, and his approval rating remains higher than that of other Nevada politicians -- Senate Majority Leader Harry Reid (34%) and Republican Gov. Jim Gibbons (10%), both of whom are up for re-election next year.

Ensign hastily announced the affair a week ago, and since then more details have leaked out -- such as that Cindy Hampton, an aide at the time of the affair, got a significant pay raise after the affair began. "About a third of those polled considered that a very serious concern, while another third called it somewhat serious, for a total of two-thirds viewing the salary increases as a serious matter," LVRG's Ball writes.

Noting Sen. David Vitter's (R-La.) path back from a sex scandal and Ensign's re-election not coming for another three years, Mason-Dixon pollster Brad Coker said: "If Vitter could bounce back in a much more socially conservative state than Nevada, Ensign has at least a 50-50 shot at it."