How did wilson's progressivism differ from his two immediate predecessors?

Woodrow Wilson differed from Teddy Roosevelt and William Howard Taft in a couple different ways. For example, Wilson was in favor of lowering tariffs (aka taxes on imported goods) while Taft was in favor of higher tariffs. Wilson was different than Teddy in the sense that Wilson wanted to break up all trusts. Roosevelt, on the other hand, wanted to break up only the trusts he deemed bad. This shows that even though they were all Progressives, Wilson had a little different idea of how America should be run compared to Taft and Roosevelt.

The answer is ethnic groups.