Republican presidential candidates are rallying behind country music singer Jason Aldean and his song “Try That in a Small Town,” issuing statements of support in what has become a political controversy and playing the tune at their campaign rallies. 
Since its release in mid-May, the now divisive song has skyrocketed in popularity among GOP and conservative listeners while being roundly denounced by the left, which accuse it of promoting gun violence and racism. 
Adding to the controversy was the official music video for the song, which premiered July 14 on YouTube.
The music video features as a backdrop to Mr. Aldean singing at the Maury County Courthouse in Columbia, Tenn., a balcony from which a mob hanged black 18-year 0ld Henry Choate in 1927.  Columbia is also the site of a 1946 major race riot….