WATCH: White House press secretary Jen Psaki speaks on Iran talks, democracy summit

Negotiators in Vienna resumed talks Monday over reviving Iran’s 2015 nuclear deal with world powers, with the United States taking part at arm’s length as in previous rounds since the Trump administration pulled out of the accord three years ago.

Watch Psaki’s remarks in the player above.

Hopes of quick progress were muted after a hard-line new government in Tehran led to a more than five-month hiatus in negotiations. But the European Union official chairing the talks sounded an upbeat note after the first meeting concluded.

At the White House, press secretary Jen Psaki told reporters on Monday that the Biden administration would continue to push for a “diplomatic approach,” to the issue.

READ MORE: Iran nuclear deal talks resume, EU chair feels ‘positive’

Psaki also outlined brief details of a summit for democracy will host on Dec. 9 and 10.

The summit will bring together 110 governments and non-government groups to discuss “how democracies can deliver for their citizens,” Psaki said.

Support PBS NewsHour: