Some conservative commentators and celebrities began calling for a boycott of Bud Light after the beer was featured in a social media promotion by a transgender influencer, Dylan Mulvaney, on April 1. After Bud Light’s sales slumped and the brand found itself thrust into the nation’s culture wars, Anheuser-Busch, the beer’s brewer, announced on Tuesday that two of its executives were taking a leave of absence. Ms. Mulvaney is popular on TikTok, where she has more than 10.8 million followers and has been documenting her transition online. The controversy began on April 1, when she posted a video on her Instagram account, where she has 1.8 million followers, to promote a Bud Light contest.