I have often worried about the impact of the politics of race and was interested to read this article by Alvaro Vargas Llosa of the Independent Institute.
His argument is that Republicans in recent years, probably from desperation, focussed so sharply on a perceived immigration problem that they pushed away a high proportion of Hispanics who had previously supported them. However, those same Hispanics, in referenda held on the same day as the presidential poll, voted right of centre on many social issues. The Republicans shot themselves in the foot and drove some of their supporters into the arms of Obama.
The left set out to scare ethnic minorities into supporting them, the right exaggerate the perceived dangers from immigration to garner support for themselves from the majority. This article points out that it is the libertarian politicians who look at people as human beings first and foremost, regardless of race.