It is therefore possible that the distribution of variable host condition in a population could alone have implications for the distribution of parasites within it through the activity of condition-linked immunity (CLI).
The modern form of the White House Press Corps emerged in the 1930s, when President Franklin Roosevelt realized that the press was a powerful medium, and he actively worked to make the White House, and the President, more news worthy.
Later, Earnest was promoted and served as Principal Deputy White House Press Secretary and Chief of Staff to Jay Carney, occasionally filling in during press briefings. Earnest is the voice of West Wing Week, an online video series produced by the White House that chronicles the President's activities each week. Earnest was named Assistant to the President and Press Secretary on May 30, 2014. Earnest is considered a passionate defender of President Obama but also someone who will advocate for more press access and the smoother flow of information. He is respected and well-liked by White House colleagues and journalists alike.