I’m a lifelong Democrat. I voted for Barack Obama, Hillary Clinton and Joe Biden. I used to have an inherent aversion to Republicans, as I joke with colleagues, similar to how the vaccinated feel about the unvaccinated today. But as the pandemic unfolded, and I discussed with doctors across the country and around the world my experience treating patients, I met many new conservative colleagues and friends who put politics aside to focus on doing our best at the bedside. It made me more tolerant and understanding of their worldviews. At the same time, I used to view Democrats, and...