  Inspired by the recent discovery of a successive evolutions of electronically
ordered states, we present a self-consistent theoretical analysis that treats
the interactions responsible for the chiral charge order and superconductivity
on an equal footing. It is revealed that the self-consistent theory captures
the essential features of the successive temperature evolutions of the
electronic states from the high-temperature ``triple-$Q$" $2\times 2$
charge-density-wave state to the nematic charge-density-wave phase, and finally
to the low-temperature superconducting state coexisting with the nematic charge
density wave. We provide a comprehensive explanation for the temperature
evolutions of the charge ordered states and discuss the consequences of the
intertwining of the superconductivity with the nematic charge density wave. Our
findings not only account for the successive temperature evolutions of the
ordered electronic states discovered in experiments but also provide a natural
explanation for the two-fold rotational symmetry observed in both the
charge-density-wave and superconducting states. Moreover, the intertwining of
the superconductivity with the nematic charge density wave order may also be an
advisable candidate to reconcile the divergent or seemingly contradictory
experimental outcomes regarding the superconducting properties.
