Former Representative Ron Klein (D-Fla.) has registered withCongress as a federal lobbyist at Holland & Knight for the first time sincehe left congressional lobbying rolls in February 2012 amid controversy.

Klein, a Holland & Knight partner who maintains officesin Florida and in Washington, in January 2012 registered as a lobbyist forSpirit Airlines Inc. while he was a bundler for President Barack Obama’sre-election campaign. Obama had pledged not to accept donations from federallyregistered lobbyists.

Following news reports about Klein’s registration, Holland& Knight filed paperwork with Congress saying he wasn’t a lobbyist for theFlorida-based airline. Klein helped raise between $200,000 and $500,000 forObama’s re-election, the president’s campaign website shows.

Klein told NBC News in February 2012 that hisregistration for Spirit was a colleague’s "clerical error." In the interview then, Klein said: