1. President Trump on Monday night blocked Singapore-based chip-maker Broadcom's proposed $117 billion hostile takeover of U.S. rival Qualcomm. The Treasury Department's Committee on Foreign Investment in the U.S. had flagged the deal over national security concerns. Aimen Mir, a top Treasury official and member of the committee, suggested in a letter to both companies on Sunday that the panel was leaning toward recommending against a deal, saying the committee had "confirmed" the security risks.