Independent presidential candidate Robert F. Kennedy Jr. is alleging dirty politics by Nevada Democrats after his campaign received incorrect legal guidance that could cost him access to the ballot. 

Nevada law requires independent candidates to name a running mate on petitions, something Kennedy did not do before gathering 15,000 signatures.

As a result, Kennedy may have to gather 10,000 signatures all over again before July 5 to get on the ballot.

Kennedy erupt over ballot access

The Kennedy campaign is blaming a dirty scheme by Democrats for the mix-up.

Over e-mail, Democratic secretary of state Francisco Aguilar responded "no" when the campaign specifically asked if a VP is needed for the signatures to count. That exchange took place in November, and according to the Kennedy campaign their petitions were approved in January.

Kennedy is threatening to sue Aguilar and depose him to "find out exactly which White House or DNC official concocted this scheme.”

Paul Rossi, an attorney for the campaign, blasted the Democratic party as "the biggest threat to democracy in this country."

"This assault on the democratic rights of millions of Americans in Nevada, and their freedom to vote for an independent candidate, embodies the corruption and depravity that has come to characterize the Democratic Party,” Rossi said.

Kennedy's campaign

Nevada's Secretary of State acknowledged the error but said it was an innocent mistake.

"This was an error, and will be handled appropriately. In no way was the initial error or subsequent statutory guidance made with intent to benefit or harm any political party or candidate for office," the office said in a statement to CBS News.

A famous anti-vaccine activist and the black sheep of his famous family of liberal Democrats, Kennedy has branded himself an outsider to the political establishment. His candidacy could have an outsized impact in a Trump-Biden rematch that is expected to be very close.

Nevada is a must-win for President Joe Biden, and recent polls show Donald Trump ahead in the state, which has been won by Democrats in presidential elections since 2008.

Kennedy formally announced his running mate, attorney Nicole Shanahan, on Tuesday, giving him an opportunity to gain wider access to the ballot in states across the country. He is currently on the ballot in Utah.