POWER OF ATTORNEY

                         For Executing Forms 3, 4, and 5


KNOW ALL MEN BY THESE PRESENT, that the undersigned hereby
constitutes and appoints each of RANDALL J. ERICKSON,
ALLISON E. CIMPL-WIEMER, and TRACY A. DEVINE signing singly, her true and
lawful attorney-in-fact to:

(1) execute for and on behalf of the undersigned Forms 3, 4 and 5
in accordance with Section 16(a) of the Securities Exchange Act of
1934 and the rules thereunder;

(2) execute for and on behalf of the undersigned notices on Form
144 in accordance with Rule 144 under the Securities Act of 1933;

(3) do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete the
execution any such Forms 3, 4 or 5 or Form 144 and timely file such
form with the United States Securities and Exchange Commission and
any other authority; and

(4) take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents
executed by such attorney-in-fact on behalf of the undersigned
pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may
approve in his or her discretion.

The undersigned hereby grants to each such attorney-in-fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary or proper to be done in the
exercise of any of the rights and powers herein granted, as fully
to all intents and purposes as such attorney-in-fact might or could
do if personally present, with full power of substitution or
revocation, cause to be done by virtue of this power of attorney
and the rights and powers herein granted.  The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in
such capacity at the request of the undersigned, are not assuming
any of the undersigned?s responsibilities to comply with Section
16 of the Securities Act of 1934 and the rules thereunder or Rule
144 under the Securities Act of 1933.  This Power of Attorney shall
be a durable power of attorney and shall not be affected by
subsequent disability or incapacity of the undersigned.


IN WITNESS WHEREOF, the undersigned has caused this Power of
Attorney to be executed as of this 22 day of April, 2014.

Signature:



/s/ Eileen A. Kamerick