authorities took the proper steps to notify state and local authorities in New York and New Jersey, it's clear that the mission created confusion and disruption. I apologize and take responsibility for any distress that flight caused." Following an investigation into how the decision to conduct the flight had been reached, directed by Deputy White House Chief of Staff Jim Messina, Caldera announced his resignation on May 8, 2009, effective May 22, 2009. Notable in the investigation is Caldera's explanation of why he did not read an email from his Deputy Director, George Mulligan: "During our interview, the Director (Caldera) also offered another explanation for his failure to read the email. When he returned from Mexico, he was suffering from severe muscle spasms in his back. Doctors prescribed pain medications, he had difficulty walking around the office, and he went home early a couple days." References External links Caldera's Biography at the University of New Mexico Caldera's Biography at the University of New Mexico School of Law Nytimes.com, NYC / New Jersey Flyover Incident Join California Louis Caldera |- |- |- 1956 births Living people People from El Paso, Texas People from Whittier, California United States Military Academy alumni United States Army officers Harvard Business School alumni Harvard Law School alumni American politicians of Mexican descent Hispanic and Latino American state legislators in California Clinton administration personnel Democratic Party members of the California State Assembly Obama administration personnel United States Secretaries of the Army University of New Mexico presidents