Either of the two challengers would beat Senate Majority Leader Harry Reid (D-Nev.) if the 2010 election were held today, a new Mason-Dixon poll finds.

Nevada Republican Party Chariwoman Sue Lowden would beat Reid by a double digit margin, topping him 49%-39%.

Businessman Danny Tarkanian, meanwhile, would beat Reid 48%-43%.

The poll found the two Republicans statistically tied for the nomination, with Lowden leading by two percentage points.