Wikipedia: Eliot A. Cohen

... co-founded the Project for the New American Century (PNAC), which was a center for prominent neoconservatives. He has been a member of the Defense Policy Board Advisory Committee, a committee of civilians and retired military officers that the U.S. Secretary of Defense may call upon for advice, that was instituted during the administration of President George W. Bush. He was put on the board after acquaintance Richard Perle put forward his name. Cohen has referred to the War on Terrorism as "World War IV". In the run-up to the 2003 Invasion of Iraq, he was a member of Committee for the Liberation of Iraq, a group of prominent persons who pressed for an invasion.

Cohen in WaPo May 3 2016:

It's over. Donald Trump, a man utterly unfit for the position by temperament, values and policy preferences, will be the Republican nominee for president. He will run against Hillary Clinton, who is easily the lesser evil ...

Cohen in the NYT on May 17 2016:

Mr. Trump's temperament, his proclivity for insult and deceit and his advocacy of unpredictability would make him a presidential disaster — especially in the conduct of foreign policy, where clarity and consistency matter. 
...
Hillary Clinton is far better: She believes in the old consensus and will take tough lines on China and, increasingly, Russia.