Pete Buttigieg has shaved his head.The first major gay presidential candidate sported the new look Tuesday during a digital interview with Georgetown University's Institute of Politics and Public Service.While the former mayor of South Bend, Ind., talked policy, fans on social media penned admiration for Buttigieg's new look.Although not everyone was thrilled.On the campaign trail, Buttigieg was known for a conservative look: clean-shaven, short and neat haircut, and a crisp white button-up