The S&P 500 jumped after a November inflation reading helped ease worries. A partial government shutdown, analysts said, wouldn't have a lasting economic impact.
Frequent images of Robert F. Kennedy Jr. and others lifting weights in jeans and boots raise the question of what can be classified as proper gym attire.
The rebels are largely the most conservative lawmakers who are passionate about slashing spending and debt. They hail from deep-red districts where a primary challenge is less of a danger.
The president-elect is eager to evade responsibility for the consequences of a potential shutdown even as he blew up a bipartisan deal that would have kept it open.
It was not the first online intervention by Elon Musk, the entrepreneur and adviser to Donald Trump, on behalf of once-fringe anti-immigrant parties in Europe.
The chairmen of the Finance, Judiciary and Banking Committees demanded answers from a Trump lawyer accused of soliciting payments from potential administration nominees.
Thirty-eight Republican lawmakers resisted the president-elect's command to support a spending and debt deal, showing that at least some of his followers are willing to buck his leadership in the right circumstances.