Jeb Bush has ended his 2016 presidential campaign.

Bush, the son and brother of US presidents, made the announcement in a somber speech before supporters in Columbia after earning just 8.3% of the vote with 67% reporting in the third primary contest of 2016.

— Jeb Bush ends presidential bid after Donald Trump wins in South Carolina The Guardian

What I find strange about US presidential campaigns is the amount of money that that candidates use in their campaigns despite being rank outsiders. Jeb Bush is reported to have accumulated $100m for his campaign. A vast amount of money but I have to wonder who even thought Jeb Bush would succeed in being a successful candidate for the Republican party?

Sounds like a gamble to me.