unity, the CP undertook a tactical retreat. The CP's conciliatory stance did not, however, protect it from its other factional rivals within the UAW. The working alliance between the CP and the Socialists in the UAW had broken down in 1938 over differences over the CP's support for "collective security," an alliance of the Soviet Union with the non-fascist nations of the West against Hitler. The Socialist Party, at that time even further left than the CP on many issues, organized a separate caucus within the Executive Board that, from that point forward, opposed the CP and its alliance partners. Break with the Roosevelt administration The CP made it easier for its opponents by making a number of sudden and shocking changes in policy. After the Hitler-Stalin pact, the CP campaigned vigorously against any U.S. involvement in the war against fascism; a journalist with the CP's Weekly Worker newspaper coined the slogan "The Yanks Ain't Coming" to sum up the Party's position. What is more, the CP now repudiated its Popular Front strategies of the previous four years, attacking President Franklin Delano Roosevelt's administration's efforts to support France and Britain against Germany as a campaign to lead the U.S. into an imperialist war. The federal government responded by arresting Earl Browder and a number of other CP leaders. The CP's opponents within the labor movement capitalized on the Party's break with FDR to attack it. James Carey, the president of the United Electrical, Radio and Machine Workers of America (or UE) who had worked closely with Communist UE officials in the past, now distanced himself from them over their opposition to a third term for Roosevelt. The UAW passed several resolutions condemning both Nazis and Communists at its Conventions. At the same time that their break with Roosevelt isolated them within the CIO, opponents of the CP outside the labor movement stepped up their attacks on the loyalty of Party members, accusing them, among other things, of engaging in sabotage by supporting strikes of aircraft workers during the UAW's organizing drive in that industry. While some of these accusations, such as those made by the Dies Committee or Reader's Digest, were so wide of the mark as to discredit the accusers, the tide of unfavorable publicity made any association with the CP that much riskier. The CP also lost ground within the CIO. While the CP believed it could shelter