The two top U.S. officials in Iraq go before Congress Tuesday to present their latest assessment of the war.
General David Petraeus - the U.S. Commander in Iraq - and Ambassador Ryan Crocker are scheduled to testify before the Senate Foreign Relations Committee and the Senate Armed Services Committee. They are expected to discuss, among other issues, the so-called "surge" strategy, which increased U.S. forces in Iraq by about 30,000 last year.
The two men are likely to face questions from all three presidential candidates - Democrats Hillary Clinton and Barack Obama and Republican John McCain