Broadcom is potentially facing renewed opposition from the U.S. government on its latest deal. Kentucky Senator Rand Paul is calling for a national security review of the company’s $19 billion acquisition offer on Computer Associates Technologies. Broadcom’s acquisition offer was first announced in July, just a month after the U.S. government blocked the company’s $120 billion effort to buy mobile chip giant Qualcomm. The government shot down the Qualcomm deal due to national security concerns around the country’s competitiveness in next-generation cellular wireless, known as 5G. Previously based in Singapore, Broadcom had relocated to California earlier this year in order to ease concerns about a foreign-entity buying U.S. companies. That move doesn’t appear to have eliminated worries though.