evidence: The video, which according to Variety magazine was taped a few weeks before she announced her presidential campaign, comes as Harris is set to appear on the season nine finale of "RuPaul’s Drag Race All Stars." [...] In its first campaign ad, Kamala Harris’ campaign suggests it wants America to be on a first-name basis with the vice president, despite some pro-Harris voices insisting in recent days that it is rude or undignified to refer to her by anything other than her title or last name. [...] Former President Barack Obama and Vice President Kamala Harris have been in close touch since she announced her presidential candidacy Sunday, having multiple conversations this week as she kicks off her campaign, according to four people familiar with their discussions.