The monthly jobs report is already closely-watched on Wall Street and in Washington but has taken on a new importance after President Donald Trump on Friday fired the official who oversees it.

Wall Street's main indexes swung to losses on Tuesday after data showed U.S. services activity unexpectedly stalled and investors considered the impact of U.S. trade policies on corporate profits.

U.S. stocks pulled back gains on Tuesday as data from the U.S. services sector came in lower than expected, and talks around tariffs and rate cuts continued to be in focus after last week's labor data.