On the ropes and with no message about rising crime or the struggling economy to appeal to voters, President Joe Biden has gone to pot. Literally. The president’s election-eve marijuana decriminalization order has him yet again putting politics over people’s lives and health. In a shameless attempt to buy the votes of young people and lower-income minority communities, Mr. Biden is waving his pen around again to dig himself out of the political cellar. The American Left, and some on the Right, along with the Big Tobacco companies already responsible for millions of deaths from their products, have spent heavily...