Solved: Thanks for everyone who helped me I eventually figured out how to get what I wanted to work but it was quite a bit different approach to what I originally started with.
Code:
Private Sub btn_Classes_by_Date_Click()
Dim conn As ADODB.Connection
Dim strSQL As String
DoCmd.SetWarnings False
strSQL = "delete * from Scheduled_For"
DoCmd.RunSQL strSQL
strSQL = "INSERT INTO Scheduled_For(MRN,Patient_Name,Surgery_Date,Scheduled_For,Enrolled_Date) " & _
"SELECT MRN,Patient_Name,Surgery_Date,Scheduled_For,Enrolled_Date " & _
"FROM Total_Joint_Readiness " & _
"WHERE Scheduled_For >= #" & Me!beginDate & "# AND Scheduled_For <= #" & Me!endDate & "# ;"
DoCmd.RunSQL strSQL
DoCmd.OpenQuery "Classes_By_Date", , acReadOnly
End Sub