The problem is the Federal government is already paying for the expansion with borrowed money. 

The Republicans and Democrats (such as Hillary Clinton) voted for war with Iraq and a long term occupation force. So instead of investing in America, the politicians including many of those still in Congress, spent it in Iraq and Afghanistan. 

They should have asked for a UN approved transitional government and saved the taxpayers hundreds of billions of dollars. There likely would not have been a insurgency in Iraq if a international coalition of peacekeepers from mostly Muslim countries were there for a few years. It would have been a cheaper bill for America and the other countries that financed it.