By JONATHAN J. COOPER and ALI SWENSON PHOENIX (AP) — Independent presidential candidate Robert F. Kennedy Jr. will speak Friday “about the present historical moment and his path forward,” his campaign announced Wednesday, fueling growing speculation that Kennedy could drop out and support Republican nominee Donald Trump. Kennedy’s running mate openly discussed the possibility on a podcast this week, saying the campaign was considering a move to “join forces” with Trump to limit the election chance of Kamala Harris, whose Democratic convention winds up Thursday night in Chicago. The move would have once seemed unthinkable for Kennedy, a Democrat for most of his life and — as the nephew of President John F.