President Roosevelt was able to mobilize support among all of these different segments of the population by giving them things that they needed. Most importantly, what all of these groups needed was jobs and/or relief. All of the groups had been hit hard by the Depression. Roosevelt mobilized them by helping to reduce their problems. For example, he created the TVA, which brought jobs and things like electric power and flood control to the South. He supported labor unions, many of whose members were Catholics and Jews in Northern cities. By doing things like this, Roosevelt gained the support of the various parts of this coalition.