NASHVILLE, Tennessee–Controversy is threatening to bring an early end to the regime of thirty-year-old Ryan Haynes, who was named chairman of the Tennessee Republican Party in April 2015. More than two dozen Republican members of the Tennessee House of Representatives signed an April 18 letter to Haynes demanding the immediate termination of his political director, Walker Ferrell, on the grounds that his wife, Taylor Ferrell, a paid consultant of the Tennessee Republican Party, is also being paid to defeat a number of incumbent Republican members of the House in primary challenges. The latest problem comes less than a month after...