A new NBC News/WSJ poll reveals that 66% of Democrats have a "high level of interest" in this fall's midterm elections — compared to 49% of Republicans.

Flashback: This is a mirror image of Republican enthusiasm ahead of the 2010 midterms, which resulted in a Tea Party sweep in Congress. At that time, the same NBC/WSJ poll showed that 66% of Republicans had a "high level of interest" compared to 49% of Democrats.