Resiliency
You can't be resilient if every little thing tailspins you into emotional oblivion. What Donald Trump has shown (and what George W. Bush showed before Trump) is resiliency. Nothing destroys a person or position that has it. No matter how many times George W. Bush made himself look like a complete idiot on live TV, he simply bounced back and acted like it didn't matter. By doing that, he made it not matter. Trump did and does the same thing constantly.
People on the left are going to make mistakes, even mistakes that make them look "dishonest" or "two-faced" or "traitors to the cause" or "stupid" to one person or another. We need to just accept the fact that everybody is a little dishonest, a little two-faced, a little judgmental, a little selfish, a little sneaky, a little dumb, a little stuck up. None of those things should surprise us. None of them should shake loyalty or self-acceptance at all. We need to stop being so damned emotionally lightweight and easy to turn.
Part of the double standard treatment Hillary and all Democrats get is our own double standard. We need to be the good guys, not the saints. It's easy to be the good guy, nearly impossible to be a saint. We need to wear our dirt proudly. Then when someone tosses more dirt at us, it won't be noticeable.