NEW YORK — Senator Bernie Sanders of Vermont raised just $25.8 million for his campaign in April, down by more than 40 percent from the previous month, as he faces an increasingly narrow path in the race for the Democratic nomination for president.
The April total, released Sunday, brought Sanders’ cumulative fund-raising haul to $210 million from more than 2.4 million donors.
He raised almost $46 million in March, his best month yet in a contest during which he frequently has brought in more money than his Democratic rival, Hillary Clinton.
Last week, Sanders revealed he would be laying off some 255 workers, saying he would focus his resources on competing in California.
Sanders has faced questions about how much he can continue to raise as Clinton has pulled farther ahead in the competition for delegates. But he is continuing to bring in large sums of money from donors making small gifts: 540,000 people contributed in April, the campaign said.
“What our campaign is doing is bringing millions of Americans into the political process,’’ campaign manager Jeff Weaver said in a statement.
Four in 10 contributors are between 18 and 39 years old, and the most common professions of donors are teachers, students, and engineers, the statement said.
Seeking to minimize the drop in fund-raising, the campaign’s spokesman, Michael Briggs, stressed that Sanders’ average monthly fund-raising total was only $17 million. But that factors in Sanders’ fund-raising going back a full year to the start of his campaign.
Clinton is 91 percent of the way to the nomination, according to the Associated Press. She is 218 delegates away from winning the 2,383 needed.
Former president Bill Clinton drew boos and shouts from the crowd Sunday as he made a campaign stop in Logan, W. Va., on his wife’s behalf, ahead of the state’s May 10 presidential primary.
Supporters of Sanders and Republican candidate Donald Trump gathered outside the school as Clinton spoke. According to WVNS-TV, a letter written on behalf of Logan officials told US Senator Joe Manchin’s staff in an e-mail that Bill and Hillary Clinton ‘‘are simply not welcome in our town.’’
Hillary Clinton, who plans 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.
Sanders and Clinton both held campaign events Sunday in Indiana, which holds its primaries Tuesday.
Clinton spoke out against the state’s new abortion law.
‘‘I will defend a woman’s right to make her own health care decisions,’’ Clinton said to a few hundred supporters packed into a sweltering recreation center. ‘‘I'll defend Planned Parenthood against these attacks. And I commend the women of this state, young and old, for standing up against this governor and this Legislature.’’
The legislation bans abortions for several factors not deemed life-threatening. As enacted, the bill prohibits termination of pregnancy if the woman is motivated by the ‘‘race, color, national origin, ancestry, or sex of the fetus’’ or ‘‘diagnosis or potential diagnosis of the fetus having Down syndrome or any other disability.’’
Clinton also delivered a speech Sunday to the NAACP in Detroit.
Sanders spoke at a news conference in Washington before heading to campaign events in Indiana.
He acknowledged that his path to the nomination depends on flipping super-delegates, the party insiders who can back either candidate and are overwhelmingly behind Clinton.
Sanders is calling on super-delegates to cast their votes ‘‘in line with the people of their states.’’
But the senator also acknowledged, ‘‘We have an uphill climb, no question about it.’’
