I will not be convinced to vote for Hillary Clinton in November by (further) recitations of how awful Donald Trump is, or how his disastrous is proposed polices would be.
What might convince me is if the Clinton campaign as their supporters behave as if they actually believe what they are telling me.
Specifically, if Secretary Clinton were to say something like the following:
Normally, presidential campaigns are about putting forward and comparing agendas, and having robust debates about the merits of each other's policies.
This is not a normal election.
My opponent has demonstrated in many ways that he is unfit for office in many dimensions, and it is my duty to do everything in my power to prevent him from taking this office and putting our nation in danger.
I know that there are many people who share this assessment, but feel they cannot vote for me for one of several reasons.This is addressed to them.
I know there are many hot-button social issues that people differ with me on. I am proposing a truce on these issues for the next four years. I will not be working to advance paying for abortion, now will I press non-government organizations and individuals to act in conflict with their values. I still believe they ought to, but it is more important that we prevent Trump from becoming president.
Another stumbling block for some has been concerns about how I have handled data during my time as Secretary of State. I think some of those investigations were overblown, but I understand why my behavior invited a certain level of suspicion. To that end, I am pledging complete transparency in how I conduct both this campaign, and my presidency. This starts today, as [well-regarded #neverTrump Republican] has agreed to be my compliance officer.
Another concern is the Supreme Court and other assignments. President Obama has nominated Merrick Garland for the current vacancy, and I believe he deserves hearings and a vote. Beyond that, I will honor the Senate's role to "advise and consent" me in choosing future nominees that are agreeable to all parties.
The same is true for decisions to send our armed forces to war. I will seek Congressional approval before taking any military action, that does not require immediacy.
I still have strong positions on all these issues, and I look forward to continuing to advocate for them. But right now, what our country needs to do now is to prevent Donald Trump from becoming president, and I'm doing my part to ensure that doesn't happen.
Is this fair? No.
In particular, it seems unfair that Congress would be rewarded for its years of doing nothing with more power.
Or that Hillary Clinton would work her whole life to become president, only to have to completely dull herself to make it happen.
But nor is it fair to ask voters like me to compromise our principles to stop Donald Trump, when the leaders who stand to benefit are unwilling to do the same. We should demand more from our leaders than from ordinary citizens, not the other way around.
I trust that Secretary Clinton and her campaign have a better idea of the threat Donald Trump represents than I do. If she doesn't make an act like this or similar, I will conclude that they value advancing their agenda more than they value stopping Trump. And I will similarly conclude that staying true to my principles and how a leader should behave is more important to me than stopping Trump.
Secretary Clinton will likely win anyway without the support of me or people like me. But if she wants to ensure it, if she wants to demonstrate how serious she considers the threat of Donald Trump, this is how she can do it.
*I do not have a similar post for Donald Trump, because I cannot imagine a scenario under which I would vote for him, even one as unlikely as what I sketch out here.