NATIONAL HARBOR, Md. — Civil war is on the minds of many conservatives. At least many of those gathered just outside of the nation’s capital this week for CPAC, the Conservative Political Action Conference. In recent years, the annual meeting has evolved into a populist confab remade in the image of former President Donald Trump. If the speakers here are correct in their doomsday predictions — and fear-soaked fundraising pleas — attendees have good reason to be scared. “I’m worried that we’re gonna have a civil war in this country,” CPAC attendee Lucy Kruse — wearing a coat embroidered with he…