Kate O’Keeffe

Relations between the US and China, strained for years, have deteriorated at a rapid clip in recent months, leaving the two nations with fewer shared interests and a growing list of conflicts. The Trump administration has moved to involve much of the US government in a campaign that includes investigations, prosecutions and export restrictions.

The Senate passed legislation to reinstate a ban on sales of US components to ZTE Corp. in a rare rebuke of President Donald Trump, who had taken steps to revive the Chinese telecommunications company. The measure was wrapped in a larger, must-pass defense bill that cleared the Senate on an 85-10 vote. President Trump is expected to turn his attention to persuading congressional negotiators to strip the ZTE sales ban out of the final version of the defense authorization bill.

President Donald Trump blocked Broadcom's $117 billion hostile bid for Qualcomm, capping a remarkable series of moves by the Trump administration reflecting officials’ concerns about an intensifying arms race between the US and China over advanced technologies. While Broadcom is a Singapore-based company, the US panel that vets foreign deals said that the bid could have had implications for the US’s broader technological competition with China.

US counterintelligence officials in early 2017 warned Jared Kushner, President Donald Trump’s son-in-law and senior adviser, that Wendi Deng Murdoch, a prominent Chinese-American businesswoman, could be using her close friendship with Kushner and his wife, Ivanka Trump, to further the interests of the Chinese government. US officials have also had concerns about a counterintelligence assessment that Ms.