Representatives from the Republican National Committee toured the American Airlines Center in Dallas late last month as they consider where to hold a first-of-its-kind midterm convention before elections in November. Dave Brown, the arena's general manager, told CBS News Texas on Wednesday that he gave the RNC all the arena's specifications and potential production set-ups. He said the RNC officials wanted to get familiar with the AAC and find out about the calendar of events scheduled for the site in late summer to early fall. Brown said full capacity for a concert is 20,000, and that the AAC has hosted corporate conventions which as many as 16,000 people attended. "The upcoming Midterm Convention is happening because of President Trump's leadership, vision, and unwavering commitment to the America First movement.…