If Trump does meet with the delegation, here is an approach that might be effective: the delegation might make a pitch to Trump that appeals to his vanity.
They could propose to the President-Elect that he could secure his place in history by launching what might be called "Trump's Manhattan Project." Just as the United States accomplished extraordinary things (at Los Alamos, in the Manhattan Project) during World War II, drawing on the brilliance of its scientists and engineers, so also now, Donald Trump as president can harness that same great American pool of talent to meet the major challenges posed by climate change: create the technologies of a clean energy future, and devise the ways by which the United States can lead the world in making a smooth and speedy transition to that future.
If the meeting occurs, but Trump does not deviate from the path he's already begun down (I need not enumerate the worrisome things he's already done since the election), then we are back to the war footing. The delegation issues an appropriately damning statement. And Elizabeth Warren goes after Trump in whatever way will best turn the American public against Trump and his climate change policies.
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