Dow rises but the broader market falls after moving between small gains and losses.
World week ahead: New US data expected to confirm strength of the domestic economy; Federal Reserve chairman in two-day Senate hearing.
Analysis: July is usually positive for Wall Street, which is buoyed this year by expectations of another solid earnings season for the second quarter.
China pulls back on tit-for-tat tariffs as Trump administration ups ante to cover goods worth more than US sells.
All of Wall Street's major indexes clinched their seventh session of gains in the past eight trading days.
UK Prime Minister Theresa May faces a likely leadership challenge after the resignations of two hardline Brexiters.
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