Karen Handel, left, and David Perdue participated in a debate of Republican candidates for Georgia's open U.S. Senate in  April.
Karen Handel, left, and David Perdue participated in a debate of Republican candidates for Georgia's open U.S. Senate in  April.

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 author on this story:
Jonathan Bernstein at jbernstein62@bloomberg.net

To contact the editor on this story:
Max Berley at mberley@bloomberg.net