You probably knew that already, but I still found this quote from the ABA president's inaugural address in 1924 of interest:
In these days of so-called progressivism and advanced political economy, we find men in every community who jeer at that [Constitutional] Convention and belittle its work. They say . . . that the Constitution might have filled the need then, but is obsolete now. . . . These ignorant, unpatriotic unthinking disciples of communistic thought would tear down where they could not build. . . . They have never offered any constructive substitute, as indeed they could not, for while the Constitution may not be perfect, it at least has stood the test of nearly 150 years. . . . [T]he Lilliputians of experimental schemes must not tear asunder what wise men have joined together.