US stock futures slipped as Wall Street's recent optimism about the economy's ability to weather President Trump's tariffs began to wear thin.

Stock futures are slightly lower Tuesday morning as investors await new developments on tariffs and labor market reports that are due in the coming days.

Dow, S&P 500, Nasdaq futures held steady on Wednesday even as Donald Trump’s sharp tariff hike on steel and aluminum imports rattled trade talks. The President doubled duties from 25% to 50%, excluding only the UK.