On the campaign trail, Democratic presidential candidate Bernie Sanders has launched a petition against the Democratic National Committee’s quiet lifting of a ban on donations from federal lobbyists and political action committees. The rules were introduced by then-candidate Barack Obama in 2008. But The Washington Post reveals the DNC quietly lifted the rules at some point during the past few months. Critics say the change could boost Sanders’ rival Hillary Clinton, whose joint fundraising committee with the DNC has raised about $27 million.