Karen Handel, left, and David Perdue participated in a debate of Republican candidates for Georgia's open U.S. Senate in  April. Photographer: Bill Clark/CQ Roll Call via Getty Images
Karen Handel, left, and David Perdue participated in a debate of Republican candidates for Georgia's open U.S. Senate in  April. Photographer: Bill Clark/CQ Roll Call via Getty Images

We've just completed another round of contentious Senate primaries, with several incumbent Republicans getting serious scares -- though they all survived.

It seems likely that we'll see another crop of these challenges in 2016. What should the next set of challengers do differently? What should institutionalized conservatives do differently? What would you like to see happen to make this process as helpful as possible for advancing a conservative agenda?

To contact the writer of this article: Jonathan Bernstein at Jbernstein62@bloomberg.net.

To contact the editor responsible for this article: Max Berley at mberley@bloomberg.net