During the 2016 'debates' Trump slammed everyone, including Rand Paul.
That A is a pre-requisite for B, does not necessarily imply that B occurred just because A occurred.
Research "Affirming the Consequent Fallacy" or "Converse Fallacy".
e.g. "If the lamp were broken, then the room would be dark"
and invalidly inferring its converse
"The room is dark, so the lamp is broken"