President Obama with Israeli Prime Minister Benjamin Netanyahu at the White House in 2013. The two have never had a warm and fuzzy relationship. Charles Dharapak/AP hide caption

itoggle caption Charles Dharapak/AP

Chicago Mayor Rahm Emanuel failed to capture a majority of the vote last month, forcing him into a runoff. It's highlighting a divide among Democrats playing out nationally. Charles Rex Arbogast/AP hide caption

itoggle caption Charles Rex Arbogast/AP

Tom Cotton, R-Ark., the freshman senator and Harvard graduate senator with a record of tough talk on foreign policy. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Secretary of State John Kerry told a House panel Wednesday that Israeli Prime Minister Benjamin Netanyahu's judgment on talks with Iran "may not be correct." Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Barack Obama hands a gift from a supporter to his assistant Reggie Love during his 2008 campaign for presidency. Emmanuel Dunand/AFP/Getty Images hide caption

itoggle caption Emmanuel Dunand/AFP/Getty Images

Israeli Prime Minister Benjamin Netanyahu will address a joint session of Congress about Iran on March 3. The White House was not consulted on the invitation. Oded Balilty/AP hide caption

itoggle caption Oded Balilty/AP

President Obama speaks at Pellissippi State Community College, in Knoxville, Tenn., on Jan. 9. Obama is turning to his biggest television audience of the year to pitch tax increases on the wealthiest Americans and put the new Republican Congress in the position of defending top income earners over the middle class. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP