UNION two FOR XML('tr') statements

I am trying to build an HTML structure like this: 

<tr><TD>John Doe (98210)</TD><TD>0.50</TD></tr><tr><TD>jane Smith (98006)</TD><TD>0.25</TD></tr><tr><TD>Total</TD><TD>0.75</TD></tr>

However, when I try to union the following two statements I receive errors. They run independently, but when I try to UNION...

Msg 156, Level 15, State 1, Line 8
Incorrect syntax near the keyword 'FOR'.
Msg 156, Level 15, State 1, Line 18
Incorrect syntax near the keyword 'FOR'.

(SELECT 
cast(#LeadOT.EmployeeName as varchar) + ' (' + cast(#LeadOT.ADPFileNumber as varchar) + ')' AS [TD]
,cast(sum(#LeadOT.LeadOT) AS NUMERIC(36, 2)) AS [TD]
FROM #LeadOT
WHERE Warehouse = 782
AND #LeadOT.LeadOT <> 0.00
GROUP BY #LeadOT.EmployeeName, #LeadOT.ADPFileNumber
FOR XML raw('tr'), Elements)

UNION 
														
(SELECT 'Total ' as [TD]
,cast(sum(#LeadOT.LeadOT) as varchar) as [TD] 
FROM #LeadOT 
WHERE warehouse = 782 
GROUP BY warehouse
FOR XML raw('tr'),Elements)

Why do I receive errors when trying to UNION the above statements?