https://www.cnbc.com/2018/03/13/trump-blocks-broadcoms-qualcomm-takeover-concerns-about-china-5g.html >The threat of China factored heavily into the U.S. government's decision to block Broadcom's proposed buyout of Qualcomm. >President Donald Trump, for his part, officially declared on Monday that the proposed $117 billion deal was prohibited on national security grounds. The president said in his order that "there is credible evidence" leading him to believe that Broadcom through control of San Diego-based Qualcomm "might take action that threatens to impair the national security of the United States."