Six ministers tied to Shiite cleric Muqtada al-Sadr left the Iraqi Cabinet Monday, protesting Prime Minister Nouri al-Maliki's refusal to set a timetable for U.S. withdrawal from Iraq. Two regional experts discuss the resignations and the impact on Iraqi politics.

The Senate voted 50-48 against a Democratic measure to pull U.S. troops out of Iraq by March 2008, but overwhelmingly passed another resolution pledging support for the troops. Sens. Jack Reed, D-R.I., and Jon Kyl, R-Ariz., give their views on…