Who is Rolling Stones source? This summer, Trump has asked close associates if they think his communications are being monitored by the feds, or — per his phrasing — “by Biden.” As a source close to Trump describes it to Rolling Stone: “He has asked me and others, ‘Do you think our phones are tapped?’ Given the sheer volume of investigations going on into the [former] president, I do not think he’s assuming anything is outside the realm of possibility.”