He is clueless. What he perceives as “no momentum” is a large mass of angry voters...impatiently waiting till election day.
You don’t see the tsunami until just before it hits. It is just another wave as it crosses the ocean.
Look at what he actually said vs. what the headline says. Not quite the same. He does not “blame Trump.” He blames those focusing entirely on Trump and allowing that to take the messaging off of Joe Biden and the Democrats’ failures that they are vulnerable on.
Except that it is traveling faster then the speed of sound.