Zarif’s comparison of Biden's approach to Trump's tactics on Iran is a signal of dissatisfaction with the pace and attitude of the Biden administration, said Aniseh Bassiri Tabrizi, a Middle East security research fellow at the Royal United Services Institute, a London think tank. “There was optimism that the Biden administration would have acted in a quicker manner when it comes to Iran,” Tabrizi said. “Instead, one month in, it only stated its readiness to participate in talks last week — and for talks to translate into something concrete, it will likely require some time.”