This appeal is from conviction on an indictment which charged appellant and two others with various counts of perjury and conspiracy to obstruct justice, in connection with proceedings of a grand jury and of the Senate Select Committee on Improper Activities in the Labor and Management Field, commonly known as the “McClellan Committee.” Appellant was given a concurrent sentence of twenty months to five years on each of the counts on which she was convicted. Count Eleven charged her in substance with endeavoring, in violation of 18 U.S.C. § 1503 (1958), to impede the administration of justice by influencing Freed, a witness before the grand jury. The conviction and sentence on this count are clearly valid. Under the doctrine of Hirabayashi v. United States, 320 U.S. 81, 63 S.Ct. 1375, 87 L.Ed. 1774 (1943), since the judgment is upheld on one count of the indictment, we need not reach the remaining assertions of error.

Affirmed.