Party sources said Sunday evening that German Interior Minister Horst Seehofer had offered his resignation both from the cabinet and as CSU leader after unexpectedly re-escalating his standoff with Chancellor Angela Merkel over Germany’s asylum policy. But according to reports from a crunch leadership meeting in Munich that stretched into early Monday morning, other senior party figures had tried to dissuade Seehofer from stepping down. A press conference that had been expected all evening was eventually postponed, with party sources telling reporters that Seehofer was going to seek one more talk with Merkel on Monday about asylum policy before deciding...