The ruling was a blow to both President Trump, who had voluntarily dismissed the suit last week, and to the Justice Department, which used the suit to establish a fund likely intended for Trump allies.

A political fight is playing out in Iran, where the small but loud faction of hard-liners has used rallies, state media and private and public statements to try to undermine negotiations.

A PAC representing wind and solar energy interests spent $1.1 million to boost the Republican primary opponent of Chip Roy, an opponent of renewables. Now they are trying to save a Republican ally in Iowa.