David B. Rivkin - The fact that some former national security officials challenge the policy

The fact that some former national security officials challenge the policy wisdom of the order, while other national security officials - most notably those of this [Donald Trump's] administration - support it, merely demonstrates that these are policy disputes that the judiciary is both ill-equipped and constitutionally barred from arbitrating.

- David B. Rivkin

source: "Is President Trump’s executive order constitutional?". Interview with James Downie, www.washingtonpost.com. February 6, 2017.