Here's why we're 'totally fine' with Sanders staying in: Clinton spokesman

Clinton's position into the California showdown

Hillary Clinton has such a big lead over Bernie Sanders that he probably would have left the race already in a normal campaign cycle, the Democratic front-runner's press secretary told CNBC on Friday.

"But we are totally fine with [Sanders] remaining in the race. It's not a matter where we'd be seeking to push him out. He's doing a good thing in terms of bringing more people into the process," Brian Fallon said on "Squawk Box."

Ahead of Tuesday's big California primary, Clinton holds a 4.7-point lead in the state over the Vermont senator, a self-proclaimed Democratic socialist, according to the RealClear Politics polling average.

Fallon said Clinton believes firmly in capitalism but "she thinks free market capitalism is prone to excesses just the same."

If Clinton were to win the White House, her policies would not be just a continuation of Barack Obama's presidency, said Fallon. "The Obama administration has made significant gains, but we recognize there's still a lot of work to do."

"I think the number one issue in this election is ... who get incomes rising again, who can make this prosperity a lot more shared across the board," Fallon added. "She has proposals, and plans to make the economy work for everyone."

Including super delegates, who are free to support any candidate, Clinton is just shy of the 2,383 delegates needed to clinch the Democratic nomination. Sanders has 1,545 delegates, despite winning 11 of the last 18 contests.

In a head-to-head general election matchup, Clinton holds a 1.5-point lead over presumptive GOP presidential nominee Donald Trump, the RealClear Politics polling average shows.

Fallon called Trump's proposals on retaliating against China's trade policies, mass deportations of undocumented immigrants and "exploding the debt" with his tax cuts "recession-inducing."

Both Trump and Clinton have big negative ratings among prospective voters. Fallon blames Clinton's negatives on the attacks she's sustained from the huge field of GOP candidates who went through the nominating process.