"... suggested that his upcoming tax bill could force changes to 401(k) plans and other retirement accounts ..."
If you ever had any doubts about the GOP's indifference to the middle class, this should settle it.
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"This political caution is infuriating some Republicans, who feel too many details are being kept secret too late in the process."
Welcome to the real world, GOP legislators, because now you understand how your electorate feels. Of course, secrecy is what killed "Replace & Repeal," so maybe it will also work here.
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"The comments by Brady and Hatch show the immense pressure that congressional leaders are under to find new revenue to offset some of the sweeping tax cuts Trump has promised."
Perhaps they could start with cuts to spending, but despite their oft-stated agenda, they've never done anything meaningful. In their own way, they're just as eager to spend as Democrats!