In each of those contests, Republican candidates are buoyed by big leads among independent voters. Despite trailing in Nevada’s two most populous counties, Angle boasts a 15 point lead over Reid among independents and sizable margins among males, white voters and voters over 50, giving her a 49% 45% cushion overall. Angle has padded her lead in the race’s closing stages; a TIME/CNN/Opinion Research poll earlier this month put her edge at 2 points, a tally within the margin of…