Rom Braslavski, who said he had endured starvation, torture and sexual abuse during two-year captivity, demanded that members “take responsibility and get out of our lives.”
Naftali Bennett, a right-wing politician, and Yair Lapid, a centrist, will merge parties for a vote later this year.
Experts say the law was written in such a way as to ensure that it was unlikely to ever apply to Jewish extremists who commit similar crimes.
A brigadier general and speaker of Parliament, Mr. Ghalibaf, one of the leaders of Iran’s war effort, has emerged as a potential contact point in any peace talks.
The legislation was the latest blow to the agency, known as UNRWA. Israel has accused it of being extensively infiltrated by Hamas.
Mohammed al-Sudani pitches himself as someone who can keep Iranian influence in check, but his vote share may not be big enough to ensure a clear political victory.
Iraq is caught in the conflict between Washington and Tehran, with the Trump administration insisting that the next government disarm powerful Iran-backed militias.