From the pulpit of a Black church that was the site of a racist massacre in 2015, Joe Biden cast this year’s presidential election as a battle for truth over lies told by those who seek to “whitewash” the worst chapters of American history – from the deadly assault on the US Capitol to the civil war. “This is a time of choosing,” Biden implored Americans during a visit to Mother Emanuel AME church, where nine Black worshippers were murdered by a white supremacist gunman who they had welcomed into their Bible study. Without mentioning Donald Trump by name, Biden assailed his predecessor and likely 2024 Republican opponent as a “loser” who sought to overthrow the will of the 81 million Americans who voted for the Democratic president. “In their world, these Americans, including you, don’t count,” Biden told supporters. “But that’s not the real world. That’s not democracy. That’s not America.” Biden’s remarks were briefly interrupted by protesters angry with the president’s support for Israel’s war in Gaza. “Ceasefire now,” they shouted from the pews. Their calls were drowned out by chanting from the president’s supporters: “Four more years.” “I understand their passion,” the president said. He then told them: “I’ve been quietly working with the Israeli government to get them to reduce and significantly get out of Gaza.” The protest was a stark reminder of the challenges the 81-year-old president faces as he runs for re-election. Growing dissatisfaction with his handling of the war in Gaza has hurt Biden’s standing among key Democratic constituencies, as widespread unease with the economy and concerns about his age drive negative perceptions of his job performance and his re-election prospects. The Charleston speech came days after Biden delivered a scathing condemnation of Trump in a 31-minute address near Valley Forge, Pennsylvania, in which he excoriated the former president for fomenting the January 6 insurrection. Taken together, the speeches lay out what the president believes are the stakes of the 2024 election: American democracy itself. Biden is sharpening his campaign rhetoric as the electoral coalition he carried to defeat Trump in 2020 shows signs of fraying. Polling indicates an erosion of support among Black voters, a critical voting bloc for the party. The president was introduced by the South Carolina congressman Jim Clyburn, a Democrat and prominent Black leader whose 2020 endorsement helped resurrect Biden’s flailing campaign and secured Biden’s primary victory in the state. Biden said it was the support of Black voters in South Carolina and Clyburn especially that allowed him to stand before them as president. “I owe you,” he said. Biden noted the record-low levels of Black unemployment since he took office, and touted the appointment of Ketanji Brown Jackson, the first Black woman to the supreme court, as well as legislation that lowered the cost of prescription drugs and made 19 June, Juneteenth, a federal holiday. He praised Vice-President Kamala Harris’s efforts to secure votings rights, though legislation has stalled in the narrowly divided Senate. “Slavery was the cause of the civil war,” he declared to loud applause from the audience. Weeks earlier, the Republican presidential candidate Nikki Haley, a former governor of South Carolina, who initially failed to cite slavery as a cause of the civil war when asked by a voter in New Hampshire. Biden made no mention of the incident, but he connected efforts to rewrite the history of the civil war as a patriotic fight for “states’ rights” to the efforts to overturn the 2020 election and undermine democratic institutions. “We’re living in an era of a second Lost Cause,” he said. “There’s some in this country trying to turn a loss into a lie – a lie which if allowed to live will once again bring terrible damage to this country.” In a statement before Biden’s speech, Haley’s campaign accused Biden of “politicized racial speech” and noted that it was Haley who removed the Confederate flag from the statehouse grounds after the Charleston massacre as the governor of South Carolina. The visit to South Carolina comes ahead of the 3 February Democratic presidential primary in the state, which launches the party’s nominating contest. At Biden’s urging, the Democratic National Committee put South Carolina first on the Democratic primary calendar as a reflection of how important Black voters are to the party. Biden faces only a nominal challenge for his party’s nomination. Biden spoke emotionally about the Charleston shooting, calling white supremacy a “poison” that “throughout our history has ripped this nation apart”. At Mother Emanuel, Biden said: “The word of God was pierced by bullets of hate, propelled not just by gunpowder, but by poison.” Biden recalled attending a memorial service in Charleston in the days after the attack. He said he came to grieve with the community, but he too found healing in those very pews. Weeks before, Biden had buried his eldest son, Beau Biden. “We prayed together,” Biden said, his voice stricken with emotion. “We grieved together. We found hope together.”