Hint: wrapped around your finger
See the answer below.
When it comes to mixing power wires with Class 2 circuit conductors, it’s important to remember to not get too “wrapped up” in your work. This installer forgot to maintain separation between the black and white 120V branch-circuit conductors entering the enclosure from the right side, and the red and black Class 2 circuit conductors. In fact, the red and black conductors are wrapped around the power conductors.
This installation violates Sec. 725.136, which requires the two different types of circuits to be kept separate from each other. While they’re both allowed to be in the same enclosure, Sec. 725.136(D) requires a minimum separation of ¼ in. to be maintained between the power conductors and the Class 2 circuit conductors. Another option would be to have some type of “barrier” installed between the two circuits, as permitted by Sec. 725.136(B). There are also a few other options permitted by Sec. 725.136 for maintaining separation between the different circuit types, but the installer here chose not to follow any of those rules.