The dollar's value sank against other currencies, as did bank stocks, while prices rose for Treasury bonds. The stock market as a whole had been on a nearly nonstop rip higher since November on the belief that President Donald Trump and a Republican-led Congress will cut income taxes, loosen regulations for companies and institute other business-friendly policies. [...] last week's failure by Republicans to fulfill a pledge they've been making for years, to repeal the Affordable Care Act, raises doubts that Washington can push through other promises. The ICE U.S.