No kidding. Think Trump even knows what vaping is?
He's supported by Duncan Hunter, who vapes, and while that doesn't mean Trump knows about it, it's
possible that he does since it is an issue for Hunter.
Trump is also anti-smoking, anti-alcohol and anti-drugs, from his brother's experience and death. One can interpret the anti-smoking both ways though :- ) He could be against any 'habit' or he could be for harm reduction.