Yet the concentrated focus on Trump’s mental health worries many Democrats — even in the blue-state stronghold of California — who fear the party is expending too much energy obsessing over Trump at the expense of winning over voters to the party message.

“I certainly understand the effort — and the drive to do something about the national catastrophe that we’re all experiencing with Trump, from sympathizing with neo-Nazis to weakening long standing alliances. It’s clear that he’s not fit for office,” said Democratic consultant Tenoch Flores, a former California Democratic Party spokesman. “But the unfortunate reality is that until enough Republicans get their heads out of the sand, whether in the Cabinet or in office, he’s going to be sitting right where he is.’’