The Note: Talk of a Third Party Run

— -- NOTABLES

ANALYSIS -- ABC’s RICK KLEIN: Is the third-party moment gone? In the four weeks since Donald Trump locked down the GOP nomination, turning #NeverTrump into go-third-party-or-go-home, a few relevant things have happened. Mitt Romney, Tom Coburn, and Ben Sasse have joined the growing list of hard nos. The ballot deadline in the second-largest state by population, Texas, has passed. Trump has locked in even grudging endorsements from most relevant GOP voices, save Paul Ryan. The Libertarian Party has nominated a pair of two-term Republican governors as its presidential ticket. And – not to be underestimated among the calculations – Hillary Clinton has not put Bernie Sanders away, while polls show a competitive general election against Trump. From the start, everything was in place for a third-party movement – the money, the message, the motivation – except for the candidate. There’s still no candidate now, and the path has only narrowed. If an A-list candidate wouldn’t get in before, what’s the argument for jumping in now?

HAPPENING TODAY -- TRUMP ADDRESSES CHARITABLE CONTRIBUTIONS TO VETERAN GROUPS: Donald Trump plans on revealing which veteran groups he’s distributed charitable contributions to in a press conference today at Trump Tower at 11 AM ET. Instead of appearing on stage with his presidential competitors at a January 28 Republican debate, Trump hosted a "special event to benefit veterans organizations” the same night and claimed the event raised 6 million. Trump also donated 1 million of his own money.

SANDERS: I’M HEADING TO THE CONVENTION EVEN IF CLINTON SWEEPS CA, NJ PRIMARIES: Bernie Sanders reaffirmed Sunday that he is not planning to accept defeat in the primary race until the Democratic Party’s convention in July, regardless of the outcome of the June 7 primaries, which include delegate-rich California and New Jersey. Talking to reporters before an event in East Oakland, California, Sanders preemptively rejected any declarations about Hillary Clinton as the presumptive nominee until superdelegates vote in Philadelphia at the party's convention later this summer, even if she passes the threshold for delegates needed, as she likely will, next week. "I think you know there’s been some discussion that some of the media is going to say the campaign is over, she is the nominee on Tuesday night after the votes come in from New Jersey -- that’s not accurate,” said Sanders, who has been feverishly campaigning in California, where 475 pledged delegates are at stake. ABC’s MARYALICE PARKS has more. http://abcn.ws/1OZLlfp

NOTED: CLINTON CANCELS NJ EVENT, HEADS TO CALIFORNIA SOONER: In what could be a sign her campaign is getting more nervous than expected about California, Hillary Clinton's campaign announced over the weekend that they're canceling her scheduled event in New Jersey on Thursday and instead will campaign in California earlier than expected. Clinton will now be in Golden State Thursday through Monday - the day before the state's primary.

WEEKEND ON THE TRAIL

ANIMAL RIGHTS PROTESTERS RUSH STAGE AT BERNIE SANDERS RALLY IN CALIFORNIA. Five animal rights protesters jumped over barricades and rushed the podium at a Bernie Sanders rally in East Oakland, California, on Monday night, prompting the Vermont senator's Secret Service detail to intervene. One of the protesters appeared to be hit by one of the security member's baton, while another was carried out of the venue by his arms and legs.For his part, Sanders did not seem rattled. "We don't get intimidated easily," he said, after the protesters had been removed, ABC’s MARYALICE PARKS reports. http://abcn.ws/22uXSiD

BERNIE SANDERS, HILLARY CLINTON WALK IN MEMORIAL DAY PARADES ON OPPOSITE COASTS. Both Democratic presidential hopefuls took to the streets on opposite coasts Monday to walk in Memorial Day parades: Frontrunner Hillary Clinton, joined by husband Bill, walked in the annual Newcastle Memorial Day parade in their hometown of Chappaqua, New York, while Bernie Sanders walked with a largely veteran crowd in a parade in San Francisco. Joined by New York Gov. Andrew Cuomo and local officials, the Clintons walked the short parade route from the town's fire station to the train station, waving at spectators along the route. On the other side of the country, Sanders marched in a San Francisco Memorial Day parade. ABC’s LIZ KREUTZ and MARYALICE PARKS have more. http://abcn.ws/1TOl7Ej

BERNIE SANDERS MOCKS TRUMP’S ‘GENIUS’ ON CALIFORNIA DROUGHT. Bernie Sanders mocked the presumptive Republican nominee for his recent comments on the drought in California, calling out Donald Trump over his dismissal of climate change, ABC’s MARYALICE PARKS reports. "You see, we don't fully appreciate the genius of Donald Trump, who knows more than all the people of California, knows more than all the scientists," Sanders told the crowd of more than 5,000 people who braved 92 degree heat to hear the senator speak on Sunday. Sanders mentioned Trump's recent campaign stops in the Golden State ahead of the June 7 primary. "[Trump] knows there is no drought. Not to mention, and I love this one, that Trump has concluded that climate change itself is a hoax," Sanders said. Last week, the businessman made headlines when he argued the state was not actually suffering from drought. http://abcn.ws/1TQ2aOp

GARY JOHNSON WINS LIBERTARIAN NOMINATION FOR PRESIDENT. Former New Mexico Gov. Gary Johnson has won the Libertarian nomination for president. Hoping to emerge as a viable contender against the two major parties' nominees in the general election, Johnson says he aims to tap into voters' broad reluctance to fall in line behind Donald Trump and Hillary Clinton. But Johnson needed to fend off challengers from more extreme wings of his party, originally falling five votes short of winning the 463 delegates needed for the nomination on the first ballot at the party's national convention. Delegates voted a second time, giving Johnson the majority he needed (55.8 percent). Former Massachusetts Gov. Bill Weld, hand-chosen by Johnson to bring media attention and fundraising dollars to the campaign, narrowly clinched the Libertarian nomination for vice president, ABC’s RYAN STRUYK and INES DE LA CUETARA report. http://abcn.ws/1Ud6qob

MEET THE MOST INTERESTING CHARACTERS FROM THE LIBERTARIAN CONVENTION. It's not just Republicans and Democrats gearing up for the 2016 election -- Libertarians from across the country huddled here in Orlando this weekend to choose their presidential nominee. They're the voters who don't fit into the customary two-party divide: As social liberals and fiscal conservatives, they're pushing their own movement to create a viable third party. One delegate from Texas wore bunny ears throughout the convention, arguing, “these things need a little levity.” Another wore a red clown nose. But that's not all: ABC’s RYAN STRUYK and INES DE LA CUETARA note the characters you don't want to miss from the convention. http://abcn.ws/27ZbqHa

SEN. DIANNE FEINSTEIN SAYS BERNIE SANDERS’ CAMPAIGN IS ALL BUT OVER. California Sen. Dianne Feinstein said Sen. Bernie Sanders’ fight for the Democratic nomination is "all but over," adding that the nation would be "better off" if he worked to bridge the party’s divides ahead of the general election. Feinstein, one of the earliest members of Congress to endorse Hillary Clinton, encouraged Sanders to view his campaign from a "real perspective," ABC’s JOHN KRUZEL writes. "Senator Sanders has the right to run, no question. He ought to be able to read the signposts as well as anybody else, and if he did that he would know that it's all but over," Feinstein told ABC’s JONATHAN KARL Sunday on"This Week.” http://abcn.ws/24dV5cU

IN CASE YOU MISSED IT

BERNIE SANDERS, DANNY GLOVER ATTEND GAME 7 OF THE NBA PLAYOFFS. Bernie Sanders capped Memorial Day off by heading to game 7 of the NBA Western Conference Finals between the Golden State Warriors and the Oklahoma City Thunder at Oracle Arena in Oakland, California. The Vermont senator was spotted arriving at halftime with actor Danny Glover, who was present at a campaign event earlier in the day. The duo headed to their seats in section 108, row 15, behind the Thunder basket. Several spectators chanted, "Bernie! Bernie!" while others asked to take selfies with the Democratic presidential hopeful, according to ABC’s MARYALICE PARKS. http://abcn.ws/1TOqZgO

WHO’S TWEETING

@ABCLiz: Clinton is changing up her schedule this week. She's no longer campaigning in NJ on Thurs and instead will go to CA early, per advisory

@GMA: NEW: @realDonaldTrump has more raw votes than any #GOP candidate in the primaries.

@BernieSanders: Last week, Golden State was down three games to one. Tonight, they finished off a great comeback in California. I like comebacks.

@politico: Sessions to GOP: Adapt to Trump or die http://politi.co/1WW8siM

@NewDay: "The people coming across the border are people that just want jobs" -- @GovGaryJohnson