Credibility

Credibility: Sanders' e-mail to delegates is tone deaf

In a follow-up email, Sanders begged delegates to resist the urge to protest, warning that “our credibility as a movement will be damaged” if delegates walk out, turn their backs or boo.

I'll take him at his word that he believes this. Is he viewing credibility with respect to who in the Democratic Party finds "the movement" credible? That's one conclusion to draw from the statement.