Would the US protect NATO allies if they were attacked?

Jim Townsend, in a segment titled "This is America," expressed uncertainty regarding the United States' commitment to deploying troops if a NATO ally were to face an attack. The article does not specify when this statement was made or where it was presented, beyond the general context of the "This is America" segment. The core of the report is Townsend's expressed doubt about the US response in such a hypothetical scenario. The article provides no further details on the reasons behind his uncertainty or any potential implications of his statement.