This is nothing more than an attempt to delegitimise the claims of Palestinians ethnically cleansed in 1948 and 1967. The Jewish Agency actively sought to bring Jews from Arab countries to Israel and in at least one case, Iraq, used terrorist violence to frighten the Jews there into leaving. These US politicians have no shame.
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Jewish refugees bill being considered by U.S. House of Representatives