How would modify a query to group by a field and within each grouping, have an order by clause?

I am working with a query using Access 2003.

How would you modify the following query to order the records by
 [Age(Days)] DESC within tblBanks.[Senior Management

In other words I want to group records by the field tblBanks.[Senior Management
and withinin each grouping, the records should be sorted in [Age(Days)] DESC.


SELECT tblOpenItems.[Process Date], tblOpenItems.[Trans Date], tblBanks.[Bank Code] AS [BRS#],
tblBanks.[GLAcct#] As [Taps/Margin],
tblBanks.[ACCOUNT#] As [Bank Account Number],  tblOpenItems.T As [_Type], tblOpenItems.Type As [Trans Code],
tblOpenItems.Description,
tblOpenItems.[Office] & ' ' & [CheckNum] As [Check/Reference#],
tblOpenItems.Amount,  tblOpenItems.AgeDays As [Age(Days)], tblOpenItems.footnote As Comments,
tblBanks.[Report Name] As Responsibility,tblBanks.Currency,tblBanks.[Senior Management Tab]
FROM tblDates, tblBanks INNER JOIN tblOpenItems ON tblBanks.[Bank Code]=tblOpenItems.Bank
Where tblBanks.[RISK REPORT] = 'YES' AND tblOpenItems.t In ("A","D","E");
UNION ALL
SELECT tblOpenItems.[Process Date], tblOpenItems.[Trans Date], tblBanks.[Bank Code] AS [BRS#],
tblBanks.[GLAcct#] As [Taps/Margin],
tblBanks.[ACCOUNT#] As [Bank Account Number],  tblOpenItems.T As [_Type], tblOpenItems.Type As [Trans Code],
tblOpenItems.Description,
tblOpenItems.[Office] & ' ' & [CheckNum] As [Check/Reference#],
tblOpenItems.Amount,  tblOpenItems.AgeDays As [Age(Days)], tblOpenItems.footnote As Comments,
tblBanks.[Report Name] As Responsibility,tblBanks.Currency,tblBanks.[Senior Management Tab]
FROM tblDates, tblBanks INNER JOIN tblOpenItems ON tblBanks.[Bank Code]=tblOpenItems.Bank
Where tblBanks.[RISK REPORT] = 'YES' AND tblOpenItems.t In ("B","C")
ORDER BY [Age(Days)] DESC;