See this from WSJ:
https://apple.news/Ax5qLCazCSyyr8mod2ehYOQ
…The proposal has gotten a chilly reception from some Democratic colleagues. Sen. Bernie Sanders (I., Vt.) on Friday circulated a letter urging lawmakers to oppose it, saying that it would undercut longstanding environmental protections.
“The last thing Congress should do is pass the disastrous side deal recently introduced by Senator Manchin to make it easier for the fossil fuel industry to destroy the planet and pollute the environment,” he said.

No sign of global collaboration on climate from Manchin here:
https://apple.news/AIUWK8OicQl62R40uRGkItg
Many US politicians (not Sanders) seem hell bent on demonising other countries because the USA is refusing to face up to the fact that it’s most responsible for the climate crisis —yet has only 4% of the world population.