The CEA said that the bill would result in $2.1 to $2.3 trillion in deficit reduction over a decade due to the growth sparked by the tax provisions in the bill.
Trump traveled to the summit on Tuesday, the morning after announcing a ceasefire between Iran and Israel after the U.S. bombed three Iranian nuclear sites.
Concerns have arisen over Section 899, a provision contained within the reconciliation package that would allow the Treasury to implement a "revenge tax."
Defense Secretary Pete Hegseth said the leaked damage report of the U.S. strike on Iranian nuclear sites was an attempt to "undermine" President Donald Trump.
One Middle East expert described being "completely flummoxed" after the dramatic events after Trump's announcement of a ceasefire in the Israel-Iran war.