NORMAN SOLOMON – It’s time to create a grassroots groundswell that can compel Joe Biden to give public notice — preferably soon — that he won’t provide an assist to Republican forces by trying to extend his presidency for another four years. A pledge to voluntarily retire at the end of his first term would boost the Democratic Party’s chances of getting a stronger and more progressive ticket in 2024 — and would convey in the meantime that Democratic candidates and the Biden presidency are not one and the same.