Sen. Joe Manchin sucked momentum out of President Joe Biden’s proposed Build Back Better climate plan on Monday, just hours after the president boasted to world leaders in Glasgow about what his framework would do to reduce carbon emissions in the United States.

“My Build Back Better framework will make historic investments in clean energy,” Biden boasted in his speech to the United Nations climate summit Monday morning. “The most significant investment to deal with the climate crisis that any advanced nation has made ever.”

The president’s revised framework released last week proposed $555 billion in climate related green energy infrastructure and climate change spending, giving Biden a platform to discuss what he described as a “moral imperative” for the United States.

But about three hours later, Manchin held a press conference to say he was willing to vote against Biden’s proposed bill if it did not meet his demands