The $1.4 trillion item on President Donald Trump’s wish list -- a package of tax cuts for businesses and individuals that he has said he wants to sign before year’s end -- is headed into the legislative equivalent of a Black Friday scrum next week.

Senate Republican leaders plan a make-or-break floor vote on their bill as soon as Thursday -- a dramatic moment that will come only after a marathon debate that could go all night. Democrats are expected to try to delay or derail the measure, and the GOP must hold together at least 50 votes from its thin, 52-vote majority in order to prevail.