My interpretation of the "USA-USA" chanting was is relation to the decreasing funding for NASA[1] and the fact that many recent missions to the ISS have been launched from Baikonur in Russia[2]. I hear the "USA-USA" chanting as in we're back in the game (and we can reuse our stage 1s!).

[1] https://en.wikipedia.org/wiki/Budget_of_NASA#/media/File:NAS...

[2] https://en.wikipedia.org/wiki/Baikonur_Cosmodrome