I don't think there is anything in the Constitution that allows for 'nationalization' of private property.
Not that the Constitution matters to the left.
The United States has been sliding further into socialism ever since Reagan left office. The Democrat Party might just as well change its name to the National Socialist Party, and most Republicans are really fake capitalists. Congress continues to think it knows best by setting a higher minimum wage, seemingly oblivious to the fact that we have the world's strongest economy precisely because it is based on free markets. What will the National Socialists and the so-called Republicans think of next, a federal maximum charge to repair a leaky faucet? How about a maximum doctor fee for the flu? President Bush demonstrated his own ignorance or mental weakness this week by bemoaning the fact that we have "income inequality". Memo to the President: that's how capitalism works. If the Marxist-Leninist day comes when we are all "equal" in outcomes, then we will all be slaves to the state. Capitalism, freedom, and the United States will be dead.