(FILES) US First Lady Melania Trump announces her "Be Best" children's initiative in the Rose Garden of the White House in Washington, DC, May 7, 2018. Extremely discreet in the White House and even more reserved since leaving Washington, Melania Trump is keeping observers guessing whether she will appear, however warily, on the campaign trail alongside her husband. Aloof and enigmatic, the Slovenian-born former model has been noticeably absent as husband Donald Trump makes his third bid for the White House. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)