An article by William Hague, former British Foreign Secretary, (Secretary of State), published in May of this year and before the Brexit result was known, The Leave campaign is really the Donald Trump campaign with better hair, offers some interesting comparisons.
1. BOTH THE LEAVE AND TRUMP CAMPAIGNS HAVE STATED NO POLICIES
"In both countries, so many people are sufficiently cross about their accumulation of grievances that they are prepared to vote against the established way of doing things without anything that could reasonably pass for a worked-out alternative programme.
Donald Trump does not have the encumbrance of policies, with details attached, costs identified and implications analysed. He only has general statements, which he modifies or abandons as necessary: a recipe for an easy campaign and a catastrophic government. Similarly, the Leave campaign does not have an agreed alternative to put into action following a victory on June 23; the consequences will somehow be sorted out later."
"Governments will have a greater sense of vulnerability, and political insurgencies a correspondingly stronger expectation of what they can achieve. A long-established consensus that free trade is good, technological change is to be welcomed, democracies are more stable and moderation is the key to electoral victories will have been severely challenged. The arguments for these assumptions will have to be articulated and fought for again, or else abandoned. The current way of doing things will have received its final warning."