Negotiations aimed at ending hostilities between the United States and Iran are encountering new obstacles, with progress toward a final agreement reportedly slowing. Discussions have stalled over key issues, including the scope of Iran's nuclear program and the extent of economic sanctions relief sought by Tehran.

Amid the slowdown, President Donald Trump renewed his criticism of former Presidents Joe Biden and Barack Obama in a series of social media posts. He accused Obama of funding Iran and blamed both predecessors for entering negotiations from what he described as a position of weakness.

Trump contrasted their approach with his own, asserting that his threats strengthened the United States' bargaining position and compelled Iran to engage in talks. The renewed rhetoric comes at a delicate moment as negotiators attempt to bridge significant gaps between the two sides.