Check this out:
Republican Party approval rating among Latinos
April 27-30 August 3-6
Favorable 14 3
Unfavorable 73 86
No Opinion 13 11
The first column is the week that Justice Souter retired, which was soon followed by speculation of Sotomayor's nomination (she was the frontrunner). That is the reference week. The second is this week.
Republicans were already lagging badly with Latinos, yet somehow, they managed to lose a net 24 favorability points over the course of three months. And for what? To keep the dying 1950s Pat Buchanan-wing of the party happy? Great call, there.