Just in from his campaign, via e-mail, seemingly looking for attention:

COLUMBIA – Tonight, in the second Republican debate, Senator John McCain
said: “We went to Washington to change government. Instead, government
changed us.”
Sound familiar?
It should. This is what Governor Tommy G. Thompson said two weeks ago at
the first Republican debate in California:
On another note, former Wisconsin Gov. Tommy Thompson indicted his party
for the way it ruled Washington, D.C., in past years, saying it lost its
conservative principles on issues such as spending. “We went to
Washington to change Washington,” Thompson said. “Washington changed us.”
-McClatchy Newspapers, http://www.theolympian.com/101/story/97426.html