Which event had a greater impact on federalism: the Civil War or the Great Depression?

There is
a very good argument to be made for the notion that the Great Depression had a greater effect on
federalism than did the Civil War. The other answer posted here succinctly points out the vast
expansion in the role of the federal government that resulted from the Great Depression.
President Franklin Roosevelt's New Deal programs injected the federal government into the
economy to an extent previously unseen. Jobs programs like the Civilian Conservation Corps and
the Public Works Administration; regulatory structures for the financial services and banking
industries such as the Banking Act of 1935, the Emergency Banking Relief Act, and passage of the
Glass-Steagall Act; unemployment compensation through the Federal Emergency Relief
Administration; and other programs all expanded the government's role in the private sector. To
that end, it is logical to conclude that the Great Depression had a greater impact on federalism
than did the Civil War.

The above argument for the Great...