US Secretary of State Antony Blinken and Qatar’s prime minister on Wednesday warned all sides not to undermine Gaza ceasefire talks set to open in the Gulf nation, in a veiled warning to Iran, Hamas and Israel. Blinken and Sheikh Mohammed bin Abdulrahman Al-Thani in a telephone call stated that “no party in the region should take actions that would undermine efforts to reach a deal,” a US State Department statement said. The two discussed “efforts to calm tensions in the region and the importance of finalizing a ceasefire in Gaza,” it said. Blinken also spoke Wednesday with the top diplomat of…