From @DickPolman1 : Some Democrats refuse to welcome anti-Trump Republicans. That’s wrong.https://whyy.org/articles/some-democrats-refuse-to-welcome-anti-trump-republicans-thats-wrong/ …
Don't get the "purity" type reasoning by some Dems. One can welcome support from people without absolving them of all their past actions. Welcoming support doesn't mean fully trusting the new supporter's judgement. Also people might actually learn from past errors.