From the Boston Globe Sept 03, 2019 =>
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President Trump reiterates his administration will let states legalize marijuana
President Donald Trump reiterated Friday that his administration is allowing states to set their own marijuana policies.
At a press briefing Friday, the president was asked by DC Examiner reporter Steven Nelson whether cannabis would be federally legalized while he was in office.
Nelson referenced studies showing that states with legal marijuana systems experience fewer opioid overdoses.
“We’re going to see what’s going on. It’s a very big subject and right now we are allowing states to make that decision,” Trump said. “A lot of states are making that decision, but we’re allowing states to make that decision.”
Ken, to paraphrase... he is not going to waste political capital on something that he has absolutely no control over. He made no commitment to support legalizing it at the federal level. Maybe you should try to read between the lines.