Washington, D.C. - When Congress returns to work this week, it begins heading toward what could be a final showdown on allowing oil drilling in the Arctic National Wildlife Refuge. While ANWR drilling supporters have a strong shot at success, they could also be foiled for reasons having nothing to do with the refuge. For ANWR drilling supporters like Sen. Lisa Murkowski, the next few months could bring great triumph. After all, this fall Congress will consider a budget bill that's likely to allow ANWR oil drilling to take place, and that budget bill, because of parliamentary procedure, cannot be...