It has become more and more difficult to explain the United States presidential election process to Mexican friends. (This predicament is glittery with irony, because after 20 Republican debates it’s become difficult for most U.S. citizens to make coherent sense of what’s going on.) The picky interest in the U.S. political process for many of my Mexican friends and acquaintances is relatively new — certainly it’s a newly informed interest. The quickly spreading appearance of computers in middle-class homes here — and in poorer households, where hand-me-down PCs are appearing — means the sudden arrival of a social media among people whose spotty educations don’t equip them to usefully handle the avalanches of information rushing their way. Yet their interest is not idle curiosity. A great many have family members — some legal, some illegal — living in states where anti-Latino laws and racists are rife. And they are seeing these rough attitudes being flourished in various ways by the revolving cast of over-excited and verbally undisciplined aspirants battling to become the Republican candidate in the coming general campaign for president. That fosters apprehension here regarding relatives living in such states as Georgia, Florida, Ohio, Nevada, Colorado, and, especially Arizona.