Party leaders were able to muscle through considerable internal rifts, but the bill’s fate in the House was uncertain.

As the measure heads back to the House for approval, Democratic activists are now focusing their efforts on the three Republican members of the Illinois delegation, despite their allegiances to President Trump.

All told, the Senate bill includes $4.5 trillion in tax cuts, according to the latest CBO analysis, making permanent Trump’s 2017 rates, which would expire at the end of the year if Congress fails to act, while adding the new ones he campaigned on, including no taxes on tips.