US stock futures pulled back on Thursday as Wall Street assessed President Trump's evolving trade policy as well as softening inflation. On Wednesday, Trump said that he would send letters to trading partners within a week or two setting unilateral tariff rates.

U.S. stock futures are lower before May inflation data and details of a U.S.-China trade deal. After two days of talks in London, U.S. and China representatives said they reached a trade agreement and will now seek approval on the framework from the U.

U.S. stock index futures edged lower on Wednesday after U.S.-China trade talks offered little sign of a durable resolution to their longstanding trade tensions, while investors turned their focus to a key inflation reading.