As Florida braced for its second major hurricane in two weeks, the US president, Joe Biden, criticised Donald Trump for spreading an “onslaught of lies” about how the federal government is handling the damage from Hurricane Helene. Biden spoke as Hurricane Milton – which the president earlier said “is looking like the storm of the century” – was on the verge of making landfall in Florida.

“Quite frankly, these lies are un-American,” Biden said from the White House. “Former president Trump has led this onslaught of lies.”

Biden said that Donald Trump and his allies had misrepresented the response and resources of the Federal Emergency Management Agency (Fema). The president singled out the Republican representative Marjorie Taylor Greene of Georgia, who claimed the federal government could control the weather.

Biden was joined in his rebuke by a Republican congressman representing areas devastated by Hurricane Helene, who issued a scorching rebuttal of misinformation and conspiracy theories spread by Trump and his supporters about the storm and the government’s response. Chuck Edwards, the member for North Carolina’s 11th district, contradicted criticism from Trump, and others, of the Biden administration’s handling of the disaster by voicing praise for “a level of support that is unmatched by most any other disaster nationwide”.

Trump kept up his campaign schedule even as the storm threatened to overshadow the presidential race with fears that it would cause catastrophic damage in Tampa and other parts of Florida’s Gulf Coast. He offered his prayers to those in Milton’s path while continuing to insult his rival and other women – saying he had no interest in stopping even if it turned off female voters.

“I don’t want to be nice,” Trump said in Scranton at his first of two rallies of the day in the pivotal battleground state of Pennsylvania. “You know, somebody said, ‘You should be nicer. Women won’t like it.’ I said, ‘I don’t care.’”

Trump also announced that he would not debate Harris again before the election, a few hours after Fox News invited the two presidential contenders to participate in a possible second debate on either 24 October or 27 October. “THERE WILL BE NO REMATCH,” Trump said on his Truth Social platform. “SO THERE IS NOTHING TO DEBATE.”

The vice-president and Democratic nominee, Kamala Harris, flew to the swing state of Nevada, with its six electoral college votes, but first attended a briefing on the storm and the federal response that Biden also received at the White House.

In an interview on CNN, Harris condemned Trump’s comments on aid, saying: “It is dangerous – it is unconscionable, frankly, that anyone who would consider themselves a leader would mislead desperate people to the point that those desperate people would not receive the aid to which they are entitled.”

Harris’s running mate, Tim Walz, meanwhile, called for an end to the electoral college system, saying it “needs to go” and be replaced by a popular vote principle. He made his comments to an audience of party fundraisers. While most American voters are in favour of abolishing the electoral college, Harris has not adopted a position on the matter.

Walz had earlier made similar remarks at a separate event in Seattle, where he called himself “a national popular vote guy”, while qualifying it by saying: “That’s not the world we live in.”

Elsewhere:

• The FBI arrested an Afghan man who officials say was inspired by the Islamic State terrorist organisation and was plotting an election day attack targeting large crowds in the US, the justice department said. Nasir Ahmad Tawhedi, 27, of Oklahoma City, told investigators after his arrest on Monday that he had planned his attack to coincide with election day in November and that he and a co-conspirator expected to die as martyrs, according to charging documents.

• Harris campaign and organisations that support her have raised $1bn in donations since she launched her presidential campaign in July. The haul, confirmed to Reuters by a source familiar with the vice-president’s fundraising, went to her campaign, the Democratic national committee and Pacs supporting her run. Trump has raised about $853m in 2024, according to a New York Times tally of public campaign statements. With less than three weeks to go until voting day, the Harris campaign and the Democrats had $404m cash on hand to the Trump campaign’s $295m.

• The Florida health department sent cease-and-desist letters to local news stations over an advertisement urging people to vote in favour of a ballot measure – an issue voted on by people in a given state on election day – that would expand abortion rights in the state.

• A judge ruled that three voting rights groups in Georgia who want voter registrations reopened haven’t proven that internet and power disruptions from Hurricane Helene unfairly deprived people of the opportunity to register. She set another hearing for Thursday to consider evidence and legal arguments. Georgia’s presidential race was decided by only 12,000 votes in 2020. State officials and the state Republican party argue it would be a heavy burden on counties to order them to register additional voters.

• Early in-person voting began on Wednesday in Arizona, making it the first of this year’s presidential battleground states where all residents can cast a ballot at a traditional polling place ahead of election day. Biden defeated Trump in the state in 2020 by just 10,457 votes. Early voting, particularly by mail, has long been popular in Arizona, where nearly 80% of voters submitted their ballots before election day in 2020, according to the secretary of state’s office.