He first exhausted all other possible options, but President Joe Biden ultimately did the right thing for his party. I recently noted that his statements since the debate had been much too focused on his needs and self-conception instead of on the country’s best interest. But in his televised address to the country Wednesday, he finally broadened the “I” to “we” and “you.” It had been an honor to serve, he said, but “the choice is up to you, the American people.” It surely is.Democrats finally have a presumptive nominee in what they believe, correctly, is the most important election of their lifetimes, vice president Kamala Harris, and the speed with which they consolidated around her left Republicans agog. Last month Harris was the moderately…