Donald Trump is lashing out at Mexico but his real fight is at home | Phillip Inman

Democrats are turning a president enraged at the blocking of his border wall into an unhinged beast

Donald Trump's threats of higher import tariffs against Mexican goods can be better understood not as an escalation of his trade war with the rest of the world, but as the act of a desperate man, prepared to upset most US business leaders to achieve his aim of building a border wall with the country's southern neighbour.

His anger, which he will bring with him on a state visit to London on Monday, is not so much with Andri(C)s Manuel Lopez Obrador's administration in Mexico City as with Congress, which has blocked the border wall, or at least restricted funding to such an extent that its completion is unlikely before the next presidential race gets under way.