08/31/2015 AT 01:30 PM EDT  rubbed elbows with New York's elite at three Hamptons fundraisers on Sunday.  The Democratic front-runner kicked off the day with a pancake breakfast at the East Hampton home of Susan and Alan Patricof, where she was joined by daughter  Next stop: a brunch at fashion designer Tory Burch's Southhampton home, where the celeb-studded guest list included  , fashion designers Jill Stuart and Donna Karan, and  But it was Bensimon who seemed starstruck – the  star tweeted several photos of the luncheon, captioning them, "Impressive lunch with @HillaryClinton @toryburch @AnnaWintour_ #donnakaran @JillStuart. women I look up to."  Impressive lunch with @HillaryClinton @toryburch @AnnaWintour_ #donnakaran @JillStuart. women I look up to pic.twitter.com/shwY1SSqtT  Other attendees also took to social media to post fundraiser photos.  Great day in SH @toryburch gorgeous home with @HillaryClinton @AnnaWintour_ @mgadsdenwilliam pic.twitter.com/t9h39iMoiM  At a third campaign event in East Hampton Sunday evening, the star of the night was unquestionably Clinton.  After a brief warm-up act from her husband, former president  , the former secretary of state took the stage for a lengthy speech, and "It was the Hillary show," one source tells  The outdoor fundraiser featured a "Hamptons casual" dress code and was attended by about 175 guests, each paying between $500 and $2,700, Politico reports.  Clinton, 67, mingled with guests and posed for pictures at the lunch, where she re-emphasized her support for President Obama's Iran deal and said she was looking forward to the possibility of facing off against GOP front-runner Donald Trump in the 2016 election.  "Donald Trump [said] he'd be better for women's health than I would," she said. "I really hope I get to debate him on that. And everything else."
The star-studded guest list at one fundraiser included Real Housewives of New York star Kelly Bensimon and Vogue editor-in-chief Anna Wintour