The annual end-of-year luncheon hosted Tuesday by the Aerospace Industrial Association, the largest defense contractor advocacy group in Washington, morphed from what is typically a holiday social event to a support group for those dealing with what the head of the organization said promises to be a complex -- and sometimes bewildering -- relationship with President-elect Donald Trump. "This is a relatively new phenomenon," AIA CEO Dave Melcher said regarding Trump's use of social media. Earlier in the day, Trump...