Members of President-elect Donald Trump’s transition team were blindsided by the latest details to emerge about a 2017 sexual-assault allegation against Pete Hegseth, increasing their frustration with the man nominated to lead the Pentagon, according to people familiar with the matter. The transition team, which hadn’t been told about the original allegation before announcing Hegseth, was surprised again late Wednesday night when the Monterey, Calif., city police released a report...