What was the Iran nuclear deal Trump dumped in search of ‘better’ terms?

"US-Iran Nuclear Deal: A Look Back at the JCPOA's Turbulent History Five years after then-President Donald Trump's dramatic withdrawal from the Joint Comprehensive Plan of Action (JCPOA), also known as the Iran nuclear deal, the international community is still grappling with the consequences of this pivotal move. Trump's decision to pull out of the agreement, which was negotiated by his predecessor Barack Obama, was met with widespread criticism from world leaders and sparked a new era of tensions between the US and Iran. The JCPOA had been hailed as a major diplomatic achievement, restricting Iran's nuclear program in exchange for relief from economic sanctions. But Trump, who famously branded the deal 'the worst agreement ever,' insisted that it was insufficient and sought stronger terms, setting the stage for a renewed standoff with Tehran."

Trump withdrew the US from the JCPOA in 2018, branding it 'the worst deal ever' and seeking stronger terms.