US and Iranian diplomats are nearing a deal, but disagreements over key issues and opposition from lawmakers in Washington threaten to derail the agreement.
The emerging accord would extend the current ceasefire by at least 60 days and outline broad principles, including the reopening of the Strait of Hormuz, limits on Iran's nuclear program, and relief from sanctions.
However, serious points of contention remain, including Iran's demand for significant economic benefits and the fate of its stockpile of near-weapons-grade uranium.
US President Donald Trump's critics, including some of his own allies, are warning that the deal could be a disaster and shift the balance of power in the region.
With the November midterms looming, Trump is under pressure to secure a deal, but his opponents are also eager to block it.
Despite the uncertainty, oil traders are optimistic about the prospect of a deal, with Brent crude falling by 6% on Monday morning.
