Stock indexes were mixed while Treasury yields edged higher and the dollar fell on Wednesday as concerns continued about U.S. President Donald Trump's efforts to push through a tax-cutting bill. The S&P 500 was down slightly while the Nasdaq edged higher along with technology stocks.

House Republicans are grinding out last-minute deal-making to shore up wavering GOP support and deliver on Trump’s top legislative priority, a multi-trillion-dollar tax breaks package, as soon as Wednesday.

Stocks fell, Treasury yields rose and the dollar came under pressure on Wednesday, as investors sold U.S. assets over growing concerns about President Donald Trump's efforts to ram through a tax-cutting bill.