Following is a summary of this Breitbart article:
Legal immigrants seeking U.S. citizenship through the naturalization process are now exempt from pledging to “bear arms on behalf of the United States,” being allowed to opt out of that part of the oath due to an executive order by the Obama Administration which circumvented Congressional debate and approval.
As with other immigration laws, the Republican controlled Congress has not used its constitutional powers to reverse the administrative action by the unelected bureaucrats at the USCIS (United States Citizenship and Immigration Service), who are given great leeway in managing the naturalization process.
From the article: “Yet, in view of Obama’s actions, why doesn’t Congress change the law and take control of the Oath of Allegiance? .. If they won’t even bar Islamic terrorists from the refugee program, why should we expect them to protect the Oath of Allegiance? Some members of Congress will grumble, make speeches and issue press releases, but the Republican leadership will do nothing.”
18.7 million immigrants are currently eligible to eventually become citizens, and 8.8 million already meet the 5-year residency requirement.