Via Jim Geraghty, I see this stunning finding from the latest Gallup poll on the Republican advantage when it comes to voter enthusiasm:

The record level of overall enthusiasm is primarily the result of Republicans’ heightened excitement — 63% of Republicans (including Republican-leaning independents) say they are more enthusiastic than usual about voting. That not only greatly exceeds Democrats’ expressed enthusiasm this year, but also is substantially higher than what Gallup has measured for either party’s supporters on the eve of a midterm election.

The high level of Republican enthusiasm has led to the largest gap in enthusiasm by party of any recent midterm elections, 19 percentage points. The prior highs were nine points in favor of the Democrats in 2006, and nine points in favor of the Republicans in 1994.