When the water is removed, or drained, from a swamp, what remains is mud (a non-technical term). This mud contains a lot of organic debris and living organisms. The organic debris, now exposed to air, gives off a sulfurous odor - it really stinks! And the living organisms are a variety of bottom-dwellers, mud-suckers, and detritus-feeders.
Donald J. Trump campaigned on "draining the swamp" in Washington, D.C. It seems that he has succeeded in his efforts, as evidenced by the stench now emanating from the nation's capitol and the large number of bottom-dwellers, mud-suckers, and detritus-feeders in Trump's cabinet, agency management, White House advisory staff and legal team.
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