Robert F. Kennedy Jr.’s working mate, the Silicon Valley investor Nicole Shanahan, mentioned on Wednesday evening that she had given one other $8 million to their impartial presidential marketing campaign because it carries out the costly endeavor of gaining poll entry throughout the nation and tries to propel Mr. Kennedy onto debate levels.

Ms. Shanahan’s new donation, which she introduced at a comedy fund-raiser in Nashville, brings her complete contribution to the marketing campaign to $10 million, not together with the $4 million she gave to a brilliant PAC backing Mr. Kennedy to assist pay for a Tremendous Bowl commercial early this yr. Ms. Shanahan, a lawyer who was previously married to the Google co-founder Sergey Brin, gave the marketing campaign $2 million shortly after Mr. Kennedy named her as his working mate in March.

After a nod to the media, Ms. Shanahan mentioned, “I think I know what they’re going to say — they’re going to say Bobby only picked me for my money,” a comment that drew laughter from the gang.

Ms. Shanahan’s feedback got here close to the tip of a four-hour occasion on the storied Ryman Auditorium in Nashville. She adopted performances by comedians together with Russell Model, Rob Schneider and Jim Breuer, a former “Saturday Night Live” solid member. Lots of the performers praised Mr. Kennedy, however in addition they used their time onstage to rail towards Covid vaccinations, Dr. Anthony S. Fauci, the mainstream information media and President Biden.

Ms. Shanahan’s private wealth has been a major asset for Mr. Kennedy. Whereas marketing campaign finance legal guidelines constrain people from donating greater than $6,600 to a marketing campaign, the candidates themselves can provide limitless sums of their very own cash.

Her money has offered a monetary lifeline as their marketing campaign undertakes a expensive effort to get on the poll in all 50 states — which might be a difficult and costly endeavor below any circumstances, much more so as a result of the Democratic Get together and its allies have pledged to mount authorized challenges to the hassle.

Ms. Shanahan made her announcement the identical day that Mr. Biden and former President Donald J. Trump agreed to 2 debates, one on June 27 on CNN and one other on Sept. 10 on ABC Information. In doing so, they rejected the standard Fee on Presidential Debates, which had hosted the occasions for many years.

Each candidates have been in search of to maintain Mr. Kennedy off the stage, with Mr. Biden’s marketing campaign chair, Jennifer O’Malley Dillon, writing explicitly in a letter to the fee, “President Biden made his terms clear for two one-on-one debates, and Donald Trump accepted those terms.”

However Mr. Kennedy might doubtlessly qualify for the CNN debate, and the hassle might really be simpler below the community’s polling guidelines than it will have been below the rules set by the debates fee. Mr. Kennedy wants to point out at least 15 percent support in 4 authorized nationwide polls between March 13 and June 20. He already has at the least two polls that present him above that threshold, one from CNN and one from Quinnipiac University. He has one other 5 weeks to earn extra qualifying polls.

To qualify for the CNN debate, Mr. Kennedy should additionally get on the poll in sufficient states in order that he might doubtlessly win the 270 Electoral School votes wanted to be elected president. He’s at the moment on the poll in 5 states, which in complete have 84 electoral votes, however his marketing campaign has one other 5 weeks to put him on the poll in different states earlier than the deadline to qualify for the talk.

Mr. Kennedy criticized each Mr. Biden and Mr. Trump after information of their deliberate debates turned public on Wednesday.

“They are trying to exclude me from their debate because they are afraid I would win,” he wrote on social media. “Keeping viable candidates off the debate stage undermines democracy.”