Shares plunge as markets ponder Trump presidency

"This is huge - there is now a very real prospect that Trump will win and so markets are repricing everything."

Markets have reacted feverishly as the prospect of a Donald Trump presidency grows, sending the dollar sliding and investors fleeing for safe havens.

In scenes likened to the aftermath of the Brexit vote, share benchmarks across Asia tumbled and the Mexican peso nose-dived as the battle to win in Florida, a battleground state, went down to the wire before being seized by the Republican.