INSERT INTO statement contains following unknown field name

I’m using Coldfusion 9,0,0,251028 on Windows 7 64-bit, with a Microsoft Access 97 database.

When I run this query:

<cfquery name="put_in_info" datasource="#db#">

      insert into news

                  (is_current, display, mes_dat,mes_tim,mes_sub,mes_text,scrollshow,exp_dat)

      values

  (1,1, #createodbcdate(now())#, #createodbctime(now())#, '#subject#', '#message#',1, #session.expdate#)

</cfquery>

I get this error:

Error Executing Database Query.

[Macromedia][SequeLink JDBC Driver][ODBC Socket][Microsoft][ODBC Microsoft Access Driver] The INSERT INTO statement contains the following unknown field name: 'exp_dat'. Make sure you have typed the name correctly, and try the operation again.   The error occurred in H:\Inetpub\pvalert.com\listserver\admin\templates\post_breaking.cfm: line 26
Called from H:\Inetpub\pvalert.com\listserver\admin\new_process.cfm: line 54
Called from H:\Inetpub\pvalert.com\listserver\admin\templates\post_breaking.cfm: line 26
Called from H:\Inetpub\pvalert.com\listserver\admin\new_process.cfm: line 54

24 :      (is_current, display, mes_dat,mes_tim,mes_sub,mes_text,scrollshow,exp_dat)

25 :   values

26 :   (1,1, #createodbcdate(now())#, #createodbctime(now())#, '#subject#', '#message#',1, #session.expdate#)

27 :    </cfquery>

28 :

Exp_dat is an expiration date column in a table that I need to update.

I've tried removing the "session." on the expdate variable, and that did nothing.  Likewise for removing the any spaces around line 24's "exp_dat".