Byron York‘s latest contribution to the Washington Examiner points to President Obama’s decision to side with a foreign leader and against one of the United States:

When President Obama discussed the new Arizona immigration law with Mexican President Felipe Calderon at the White House Wednesday, he was doing something he has never done with the governor of Arizona. Although Obama has repeatedly criticized the law, he has not once talked about it with Gov. Jan Brewer, nor is any such discussion in the works.

If they did talk, Brewer might ask Obama why he took a foreign leader’s side against a U.S. state on the issue of illegal immigration. In a Rose Garden appearance, Calderon called the Arizona law “discriminatory” and said it will lead to immigrants being “treated as criminals.” Obama echoed Calderon’s remarks, saying the Arizona law “has the potential of being applied in a discriminatory fashion” and creates the “possibility” that immigrants will be “harassed or arrested.”

The scene left some in Arizona, and all around the country, slack-jawed. “It is unfortunate and disappointing,” says Arizona Republican Sen. John McCain, “that the president of Mexico chose to criticize the state of Arizona by weighing in on a U.S. domestic policy issue during a trip that was meant to reaffirm the unique relationship between our two countries.” Far more distressing to some was the fact that Obama took Calderon’s side.