WASHINGTON (AP) — The Latest on the 2016 presidential campaign ahead of Tuesday's high-stakes Indiana primary (all times Eastern Daylight Time):
Democratic front-runner Hillary Clinton is appealing to African-American voters to prevent the progress achieved under Barack Obama's presidency from being "torn away" if her Republican counterpart is elected to the White House.
Speaking to thousands at an NAACP dinner in Detroit on Sunday, Clinton pointed to Donald Trump's "insidious" role in the birther movement that questioned Obama's citizenship and his refusal to immediately denounce white supremacist David Duke.
Clinton says "we cannot let Barack Obama's legacy fall into Donald Trump's hands."
The former secretary of state, senator and first lady says "let's not endanger the promise, the potential, the dream of our country by giving in to these voices of hatred."
Clinton says bringing the country together is more urgent than ever with Obama's presidency ending.
Republican front-runner Donald Trump is urging his party to unite behind his candidacy — not that it will make a difference to his nomination, he says.
Trump tells a crowd in Fort Wayne, Indiana: "I don't think it matters, but it would be nice to have the Republican Party come together.
He adds: "With that being said, I think I'll win anyway."
Trump is campaigning across Indiana, which holds its primary on Tuesday.
If Trump wins, he'll cement his commanding lead and inch ever-closer to clinching the Republican nomination ahead of this summer's convention.
Rivals Ted Cruz and John Kasich remain in the race and are hoping to force a contested convention by denying Trump a majority of delegates.
Bernie Sanders is acknowledging that his path to the nomination depends on flipping superdelegates, the party insiders who can back either candidate and are overwhelmingly behind rival Hillary Clinton.
It's a surprising admission by the Democratic presidential candidate, who formally joined the party a year ago.
He's calling on superdelegates to cast their votes "in line with the people of their states." But he's also noting that even if superdelegates from states Sanders won flipped to his side, he'd still face narrow path to the nomination.
Clinton is still 91 percent of the way to the nomination, according to the Associated Press. She is 218 delegates away from winning the 2,383 need to clinch the nomination.
"We have an uphill climb no question about it," he says.
Sanders spoke at a news conference in Washington before heading to campaign events in Indiana.
Former President Bill Clinton drew boos and shouts from the crowd as he made a campaign stop in Logan, West Virginia, on his wife's behalf, ahead of the state's May 10 presidential primary.
Supporters of Democrat Bernie Sanders and Republican candidate Donald Trump gathered outside the school as Clinton spoke Sunday. According to WVNS-TV, a letter written on behalf of Logan officials told U.S. Sen. Joe Manchin's staff in an email that Bill and Hillary Clinton "are simply not welcome in our town."
Hillary Clinton, who planned to campaign in Williamson on Monday, has been criticized for comments that her policies would put coal miners and companies out of business. Clinton said later she was mistaken and that she's committed to coalfield communities.
Bill Clinton planned to attend a rally later in Charleston.
Donald Trump is saying that, if he becomes the GOP presidential nominee, he'll raise money for Republican Senate candidates.
He said Sunday in Indiana that competing against republican rivals is "wasting time" he could be spending raising campaign cash.
Trump has frequently boasted that his presidential campaign is self-funded. While Trump has not held traditional fundraisers and lacks a financial team to solicit checks, his campaign website features a large, red "donate" button.
He has raised more than $9.5 million, according to federal records.
A senior aide, Paul Manafort said on CBS's "Face the Nation" Sunday that the Trump campaign has meetings this week about working "with leaders of the Republican Party and various committees to help raise money for them."
Donald Trump says Republicans, "have fallen out of love" with his main GOP rival, Ted Cruz.
The GOP front-runner spoke in the closing days of the Indiana primary in an effort to cement his hold on the Republican presidential nomination.
Cruz, who is trailing Trump badly in delegates, has placed a strong emphasis on Indiana and a loss here in Tuesday's primary could be crippling toward his campaign. Trump taunted that Cruz was "way down in the polls."
The rally in Terre Haute, the first of four scheduled for Indiana over the next two days, puts Trump in a bellwether county that has voted for the winning candidate in the general presidential election 30 out of 32 times since 1888.
Donald Trump's top adviser says the GOP front-runner is willing to help House and Senate Republicans raise money to maintain their congressional majorities.
Paul Manafort said on CBS's "Face the Nation" Sunday that Trump "has indicated that he is going to work with leaders of the Republican Party and various committees to help raise money for them."
Trump has recently picked up support from some members of Congress, including Sen. Jeff Sessions of Alabama and two House committee chairmen. But it's not clear that the GOP campaign committees or other lawmakers want Trump's help. After Trump said Hillary Clinton's main qualification for the presidency is her gender, New Hampshire Sen. Kelly Ayotte, who is in a tough re-election battle, said Friday that women leaders expect to be "judged just on our qualifications and merit."
Also on CBS, Sen. Lindsey Graham, who supports Trump rival Ted Cruz, urged Republicans to stay far from any association with Trump because, Graham said, Trump is not a conservative.
Bernie Sanders has brought in about $26 million in April in his primary challenge to Hillary Clinton, marking one year on Sunday in his insurgent bid for the Democratic nomination.
Sanders' fundraising total for the month was a steep decline from the $46 million he raised in March, raising questions about whether he can sustain his powerful online money machine as his path to the nomination has substantially narrowed against Clinton.
Look out for Bernie Sanders to help front-runner Donald Trump compete against Democrat Hillary Clinton.
Not purposely, of course. But the Republican front-runner says that he'll use Sanders' sound bite calling Clinton unqualified later in the campaign. Trump didn't mention that Sanders has since retreated from his own comment and said that Clinton, a lawyer, former senator and onetime secretary of state, is intelligent and experienced.
On "Fox News Sunday," Trump said Sanders' comments back up his own charge that Clinton is only a viable candidate because she's a woman.
He spoke ahead of Tuesday's Indiana primary, with 57 GOP delegates at stake. Trump, Clinton, Sanders and GOP rival Ted Cruz have events in the state Sunday. Clinton also is delivering a speech to the NAACP in Detroit.