Good morning from Washington. Today is Day 2 of Fortune’s Most Powerful Women Summit. From the speed of AI to the shifting policy environment, the theme of Leading in a Dynamic World resonates. There’s cause for concern: Angela Williams, the CEO of United Way Worldwide, the world’s largest privately-funded philanthropy, told me that global uncertainty is prompting a “wait-and-see” approach among donors at a time of growing need.  But I’m also struck by the optimism of women leaders here. At a dinner hosted ...