Backs against the wall: Trump victory casts pall over Mexico

By Dave Graham MEXICO CITY (Reuters) - Mexico was pitched into deep uncertainty by Donald Trump's U.S. election victory on Tuesday after a bitterly divisive campaign, raising the prospect of major clashes over trade, immigration and security. The peso currency suffered its biggest fall in 22 years on fears Trump will stick to a campaign pledge to rewrite or dump a free trade treaty he says is loaded in Mexico's favor. Investors worry a trade fight could tip Mexico's economy into recession.