Appellants seek damages for malicious interference with their contractual rights. The contract involved provided for the merger of Hunt Transfer Company with Consolidated Freightways, a large motor carrier, and was subject to the necessary approval of state and federal regulatory agencies. The alleged malicious interference consisted in the protest by appellee railroads of the application made to the Interstate Commerce Commission for approval of the merger. Jurisdiction is conferred by diversity of citizenship. The present appeal is from summary judgment of the District Court • in favor of the railroads.

For the reasons set forth in the opinion of the District Court, 187 F.Supp. 918, we are satisfied that judgment must be affirmed.

Upon appeal, for the first time appellants have broadened the theory upon which they seek recovery to include malicious abuse of the process of Interstate Commerce Commission. Assuming without deciding that this contention is properly before this court, we find it to be without merit. As the District Court opinion points out, the railroads, as parties in interest, were privileged to appear before the commission for the purpose of attempting to thwart the further expansion of Consolidated. We find no substantial questions of malice presented by the fact that the railroads pursued their objections through a series of hearings and appeals. The commission itself, upon the railroads’ final petition for review, denied Consolidated’s motion to strike the petition as repetitious. .

Affirmed.