Depends.

If the next president is a Republican they can dump as much money into whatever the fuck they want and conservatives will fall in line and support it. No matter how wasteful it is. No matter how long it takes.

If the next president is Democrat, they will be held to higher standards, and spending a bunch of tax payer dollars to tear down something that was just built would probably be viewed as unnecessarily wasteful so they probably won’t do it. They might repurpose it for actual office work intead of using it as a ballroom for people with small dicks though.