Hillary Clinton says she has been telling candidates seeking the 2020 Democratic nomination that even if they run a perfect campaign, the election could be "stolen" from them, implying that was what befell her in 2016.

Clinton said Saturday that she has been pouring over special counsel Robert Mueller's 448-page report on the Russian government's "sweeping and systematic" interference in the 2016 election and that she fears the same tactics will be "alive and well" in 2020.

"You can run the best campaign, you can even become the nominee, and you can have the election stolen from you," she said to cheers on the Los Angeles stop of her "Evening with the Clintons" tour with her husband, former President Bill Clinton.

During the tour's stop Friday in Seattle, Clinton pointed to FBI Director Christopher Wray's warning last month that Russia continues to pose a "very significant counterintelligence threat" and that efforts to influence U.S. elections with "social media, fake news" and "propaganda" has "continued pretty much unabated."

"There is no effort to try to have an organized national response to that," Clinton said. "Social media is still an incredible channel to communicate information that is untrue and defamatory about someone else."

Clinton said Americans need to "make sure that the election is not interfered with in that 'sweeping and systemic' way that Mueller found it was in the prior election" and how to "protect our candidates from that."

She also cautioned that Trump's ability to draw the news media's attention will present a "real dilemma" for the eventual Democratic nominee.

"Because Trump took up so much of the oxygen if I said one thing about Trump in a speech and then 30 minutes of something about jobs, the one thing I said would be what would be covered," Clinton said of the dynamic in 2016.

"The press could not give up their addiction to waiting to see what Trump would do next."

The former first lady, secretary of state and New York senator also said Saturday that Trump can be defeated despite a roaring economy that features the lowest unemployment rate in 50 years, stock indices near record highs and solid growth in the gross domestic product.

"It is the economy, it's always the economy, but that's not the only reason that we should elect a president, or in this case retire one," Clinton said, according to CNN.

"Yes, maybe the economy is still pumping along, but all of a sudden you've got tens of millions of Americans who are much less secure because their health care is gone," she said, referring to the Trump administration's effort to have the Affordable Care Act declared unconstitutional.