Throughout the campaign, the president-elect vowed to “drain the swamp” of Washington, partly by decreasing the role of lobbyists and special interests in policymaking. [Trump aide Sean Spicer] said this is the first step toward that goal.
The Obama administration has its own ban in place. Anyone who had been a registered lobbyist in the prior two years is prohibited from joining — unless they get a waiver. Former Obama administration officials have also been banned from lobbying the White House.
November 17, 2016
"Anyone who is appointed to Donald Trump’s administration will be banned from becoming a paid lobbyist for five years after leaving the White House..."
The transition team announced.