Primaries aren't over until #DESen on September 15, but it's hard to see an actual setback for the left in downballot races. They either took ground or didn't, but didn't lose it. The three primary-challenged Squad members prevailed, DSA candidates picked up seats in NY, etc.

If people want to compare the left to the Tea Party, Justice Democrats have already replaced five incumbents in two years. The attempt to roll them back, which resembled the successful 2014 Chamber of Commerce effort to stop more conservative Rs from winning, hasn't worked.

So, yes, the Trump ads about the rising left are right - they just miss the mark when they insist Joe Biden's part of this. If Biden wins the left is going to be organizing mostly against him.