Republican presidential candidate, Sen. John McCain, R-Ariz., left, arrives in Washington after delivering a speech in Kansas City, Mo., Monday, April 7, 2008. McCain, who sits on the Senate Armed Services Committee, has come to Washington for the much-anticipated appearance of Iraq commanding Gen. David Petraeus before the committee Tuesday.
Republican presidential candidate, Sen. John McCain, R-Ariz., left, speaks to advisor Charlie Black, aboard the campaign airplane in route to Washington, Monday, April 7, 2008. McCain, who sits on the Senate Armed Services Committee, is coming to Washington for the much-anticipated appearance of Iraq commanding Gen. David Petraeus before the committee Tuesday.
Republican presidential candidate, Sen. John McCain, R-Ariz., left, speaks to advisor Charlie Black, aboard the campaign airplane in route to Washington, Monday, April 7, 2008. McCain, who sits on the Senate Armed Services Committee, is coming to Washington for the much-anticipated appearance of Iraq commanding Gen. David Petraeus before the committee Tuesday.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) places a wreath at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) greets the crowd after speaking at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's death April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) greets the crowd after speaking at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's death April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) speaks at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) speaks at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) speaks at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.
MEMPHIS, TN - APRIL 04: Republican presidential candidate Sen. John McCain (R-AZ) speaks at the Lorraine Hotel, the site where Martin Luther King Jr. was killed, during an event marking the slain civil rights leader's death April 4, 2008 in Memphis, Tennessee. King was killed by James Earl Ray 40 years ago today.