What a great turnout.>> California I need your help.>> Hillary Clinton and Bernie Sanders on Tuesday launching their final showdown in California, by far the richest price in a wild, devisive race that's gone on longer than anyone was predicting. Amanda Becker says the stakes are high for both.
>> Clinton really needs to win there to show that she's strong going into the convention, that she can be a nominee that kind of unites the party. Sanders of course has invested heavily in California. He thinks that his kind of supporter, from the more liberal wing of the party, that there are a lot of them there, that he has a really good chance.
>> But the push to the June 7th primary starting off as usual with controversy. An increasingly assertive Sanders resisting all calls to drop out, forced to clarify a comment he made to the Associated Press that the Democratic Convention in July could be messy. That reminding critics of his supporters' raucous behavior earlier this month at the Nevada State Convention.
Sanders telling NBC he meant Democracy is messy.>> It's not always pleasant.>> That messiness paying off for Sanders on one front. The Democratic National Committee reaching for unity, letting Sanders appoint several of his own supporters to the committee writing the party platform, including, leftist academic Cornel West and Congressman Keith Ellison.
>> Thank you Riverside.>> California offers him one big advantage.>> Sanders tends to do well with people who might not identify as a Democrat or you know with a party in general. So California has an open primary. It means that people can vote whether they've been a registered Democrat in the past or not.
And that should benefit him because it can bring in some political Independents who kind of like the outsider campaign that he's run.>> We've gotta get back to work.>> But that doesn't mean Clinton's worried. With state polls pointing her way, the frontrunner turning down a chance to debate in California, content to concentrate her fire on presumptive Republican nominee Donald Trump, and hope June 7th marks the end of the line for Sanders.