Explainer-How quickly can Trump's Musk-led efficiency panel slash US regulations?

Elon Musk and Vivek Ramaswamy, who were tapped by Republican President-elect Donald Trump to lead a new Department of Government Efficiency, have revealed plans to wipe out scores of federal regulations crafted by what they say is an anti-democratic, unaccountable bureaucracy. Getting rid of federal agency rules can be a monumental task, according to experts. Here is a look at the hurdles and legal challenges Trump could face if he follows through on the panel's recommendations.