Potus tweet error "Caight" is referring to "Kate". As in

#1 Kate Brown who facilitated the Uranium One deal (taking land from the Hammonds) -or-

#2 Kate Spade, who committed "suicide" by hanging. Believed to be the result of her knowledge of child trafficking rings. This may be the more likely decode given the recent arrest of Ghislaine Maxwell and reports that she is cooperating with the Feds