Construction on President Trump’s ballroom proceeds at the White House, on the site of the former East Wing. The structure is now above ground, a development that appears to have occurred despite a judge’s order last month.

The $1 billion request is tied directly to the transformation of the East Wing into a massive ballroom, though limited to “security”-related needs. Here's what we know.

The White House plans to justify a $1 billion East Wing renovation package during a Senate Republican briefing, saying it funds both a new ballroom and major security upgrades. The package includes White House hardening,

Q: Has President Trump asked for a billion dollars for the ballroom? A: Since the White House announced plans in July for a ballroom, the president has promised to fund its construction without using public money.

The National Park Service says debris from the demolition of the White House East Wing that was dumped at a nearby public golf course has tested positive for lead, chromium and other toxic metals.

The agreement, which was signed this fall, ensures donor anonymity, establishes a fee structure and institutes a ban on foreign contributions.

The National Park Service said the dump of debris, between the fourth and ninth holes, does not exceed environmental limits. Opponents disagree.