Democratic presidential candidate Bernie Sanders said Saturday that the Democratic National Convention will be contested.

Speaking to reporters in Los Angeles, Sanders said he doesn’t think he or Hillary Clinton will have enough pledged delegates to clinch the party nomination before the convention, the Associated Press reported.

Sanders said the candidates will need to rely on superdelegates to reach the 2,383 delegates required to win the nomination, a system he described as “deeply flawed.”

Clinton currently has 2,313 delegates, including 1,769 pledged delegates and 544 superdelegates. Sanders has 1,547 delegates, included 1,501 pledged delegates and 46 superdelegates, according to the AP.

Read more: What to Know About Superdelegates in Under 90 Seconds

While Sanders continues to highlight the differences between himself and Clinton, the former secretary of state took steps to target her likely general election opponent, Donald Trump, this week in a speech on national security.

“If all goes well, I will have the great honor as of Tuesday to be the Democratic nominee for president,” Clinton said Friday, the AP reported.

California’s primary will take place Tuesday.

Get our Politics Newsletter. The headlines out of Washington never seem to slow. Subscribe to The D.C. Brief to make sense of what matters most. Please enter a valid email address. Sign Up Now Check the box if you do not wish to receive promotional offers via email from TIME. You can unsubscribe at any time. By signing up you are agreeing to our Terms of Use and Privacy Policy . This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Thank you! For your security, we've sent a confirmation email to the address you entered. Click the link to confirm your subscription and begin receiving our newsletters. If you don't get the confirmation within 10 minutes, please check your spam folder.

Write to Katie Reilly at Katie.Reilly@time.com.