Thread by @dsamuelsohn

There's an obvious playbook waiting for Joe Biden should he win the White House with a mandate to tear down President Donald Trump's legacy. It's the same one Trump used four years ago. @rbravender with the deep dive in @Politicsinsider ($) ow.ly/bgAk50BNohH

Trump's early days in office were largely devoted to obliterating Obama's accomplishments. Each step of the way, he relished in moves to pull the US out of international agreements, dramatically shift priorities at federal agencies & issue a spate of executive orders.

But a Biden win means there's nothing stopping him from undoing it all right back. "That's part of what you win when you win an election is the ability to do that," said Mike Leavitt, former George W. Bush official who led Romney's 2012 presidential transition planning effort.

It's the job of Biden's transition team — more than 3 dozen staffers already are working behind the scenes to prepare — to scrutinize everything Trump has done over the past four years. They're indeed mapping out which policies they want to torpedo and how they want to do it.

One thing to expect on Inauguration Day if Biden wins: His White House chief of staff issuing a memo that halts all federal regulations that are still pending; akin to what Priebus, Rahm and Andrew Card all did on their first day in the job.

The Biden team is also eyeing a tool that allows Congress to reject any Trump era rules that were recently put on the books before he left office. By May 2017, Trump, backed by a GOP-led US House and Senate, used the Congressional Review Act 14 times to unravel Obama rules.

Using the CRA would depend in large part on the makeup of Congress next year. If Biden is in the White House and Democrats hold the House and Senate, the CRA is far more likely to be effective than if the GOP controls either chamber.

Dems are keeping close tabs on Trump rules that could be ensnared by the CRA if Biden wins, @rbravender reports. A big one for environmentalists is Trump's policy to speed up fed permitting of infrastructure projects like highways and pipelines..

A Biden admin would also be in a position to scrap or rewrite any Trump rules already on the books. Those include policies dealing with air & water pollution, healthcare, technology, & every other issue that the alphabet soup of federal agencies has the power to regulate.

One of the fastest ways for a new administration to enact policies is with the president's pen. Those orders are also by nature extremely easy for the next president to toss out, and Biden could change or revoke any Trump executive orders if he's in charge of the White House.

New administrations often roll out rapid-fire executive orders in their early days to show that they're following through on their campaign trail promises. Many of Trump's early orders unraveled Obama policies; early Biden orders could similarly undo Trump's work.

"You could do 100 executive orders if you wanted on day one," said Chris Lu, a former Obama White House official who was executive director of the Obama-Biden transition team in 2008.

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