Two weeks after President Donald Trump’s sweeping tax bill passed the House with razor-thin margins, the Senate has begun to tinker with the legislation’s architecture. Some are now warning that changes in that chamber could cause the edifice to collapse.

The 'One Big Beautiful Bill Act' is a comprehensive tax package recently passed by the Republican-controlled House of Representatives. Its primary goal is to make the 2017 Trump tax cuts permanent, while also introducing new tax breaks for tips,