"While it has been my intention to seek reelection, I believe it is in the best interest of my party and the country for me to stand down and to focus solely on fulfilling my duties as president for my term," Mr. Biden posted in a statement on social media.
Not in the blue-no-matter-who states. But in the states that will vote for Trump, and the states that may vote for Trump, it matters.
Why put forward a candidate who can only win where any Democrat would win?