Show Roosevelt Approves Campaign Cost Probe WASHINGTON ASHINGTON Feb 1 JP- JP President Roosevelt has given approval approval ap ap- roval says Majority Leader RobInson Rob- Rob Inson to the proposed senate investigation investigation of senatorial and ial campaign expenditures Robinson introduced the proposal Thursday and talked the matter over with the president yesterday The senator explained the inquiry would be a continuation of ot one pursued pursued pur pur- sued for several years He said it was designed to prevent bad tices Uces |