Sanders pushes back on DNC reversal on contributions
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Democratic presidential candidate Bernie SandersBernie SandersNew Alexandra Pelosi documentary brings together GOP, Dem members Sanders: FBI inquiry of wife is 'pathetic' attack Why UK millennials voting for socialism could happen here, too MORE launched a petition on Sunday urging the Democratic National Committee to reverse its decision to lift a ban on campaign contributions by lobbyists, according to the International Business Times.

Sanders called the rollback "an unfortunate step backward," the news outlet reported, adding that the Vermont senator called President Obama's decision in 2008 to ban contributions from political action committees and lobbyists a "noble step."

The senator's campaign also urged rival Hillary ClintonHillary Rodham ClintonJeff Bridges: ‘I’m rooting’ for Trump as a human being Leading Pelosi critic Moulton once penned effusive praise for her: report Dems land top recruit for Ros-Lehtinen's Florida district MORE to push back against the DNC's decision.

“We support the restrictions that President Obama put in place, and we hope Secretary Clinton will join us in supporting the president,” campaign representative Michael Briggs told the IB Times.

“If we are to restore a vibrant democracy in this country, it is long past time to break the link between money and special-interest favors in politics,” campaign manager Jeff Weaver said in an email sent to supporters, according to the outlet.

The DNC last week rolled back restrictions that put a ban on donations from federal lobbyists and PACs.  

“The DNC’s recent change in guidelines will ensure that we continue to have the resources and infrastructure in place to best support whoever emerges as our eventual nominee,” Mark Paustenbach, a DNC spokesman, told The Washington Post in an email.

“Electing a Democrat to the White House is vital to building on the progress we’ve made over the last seven years.”