Dayton mayor promises to tell Trump during his postshooting visit to Ohio city ‘how unhelpful he’s been’ in fight against gun violence

President Trump should not expect a warm welcome in Dayton, Ohio.

The Midwest city’s Mayor Nan Whaley said Tuesday she plans to tell Trump to his face how counterproductive he’s been in the fight against gun violence when he visits her town to meet with local officials and families of the victims...