The "spending bills" are more accurately called appropriation bills, and were covered later in my post. That constitutional clause is also a bit quirky, becaus

The "spending bills" are more accurately called appropriation bills, and were covered later in my post. That constitutional clause is also a bit quirky, because "raising Revenue" would be tax bills (a.k.a. revenue bills), not spending bills (appropriation bills). But in practice it seems to be treated as applying to both.