President Trump convenes with Senate Republicans to push forward his controversial tax policy bill, already labeled a "disgusting abomination" by Elon Musk. Joe St. George of Scripps News Group unpacks the implications for American taxpayers and identifies the key Republican dissenters who could sway the bill's fate.

Republicans hold a slim majority in the upper chamber, with 53 senators to the 47 who caucus with the Democrats. If all Democratic senators vote against the bill, as is expected, it will take only a handful of GOP rebels to defeat it.

The child tax credit could change as Senate Republicans debate Trump's mega-bill. Here's what families need to know.