To play this video you need to enable JavaScript in your browser. Figure caption, Watch: US midterms are'last best chance to rein in' Trump administration, Obama says Former President Barack Obama attacked the Trump administration over the Iran war and high consumer prices as he hit the campaign trail for Democrats ahead the US midterm elections. On Saturday, the Democrat held a campaign rally in Ohio to stump for candidates Amy Acton and Sherrod Brown. Later, he will appear in Michigan to push for Senate candidate Abdul El-Sayed. Meanwhile, Donald Trump cast his early ballot in Florida, and later on Saturday will head to Georgia to hold a rally for Republican candidates.

Barack Obama has said congresswoman Ilhan Omar is under federal criminal investigation simply because she's an outspoken critic of the President Donald Trump. The full weight of the federal government is being brought down on a law-abiding elected official because she has dared to criticize the president, the former US president wrote on X, calling the probe so appalling. The White House defended the inquiry, saying the justice department was focused on restoring law and order. Last week, homeland security agents searched the Minnesota Democrat's Washington DC home as part of an investigation into her immigration status. Born in Somalia, Omar moved to the US with her family as a child.

Barack Obama criticized Donald Trump's approach to artificial intelligence, calling for stronger AI regulation as concerns grow over safety, jobs and human control.

Obamas' 'fiery and gorgeous' dog Sunny dies The Obamas' beloved pet dog Sunny has died after 13 years with the family, Barack Obama has announced. Yesterday, we lost a cherished member of our family, the former US president wrote on X, describing her as a loyal dog who was pretty much perfect and always by their side. The family had two Portuguese Water Dogs in the White House. They got Sunny at the beginning of Obama's second presidential term in 2013. Sunny met many high-profile visitors while Obama was president, from foreign dignitaries to Pope Francis.

Barack Obama urged Democrats to make AI policy a central agenda, warning artificial intelligence could be dangerous without oversight amid concerns over jobs and privacy.

Ex-president urged party at closed-door fundraiser to create sweeping framework, from safety'slow-down' to job losses Barack Obama urged Democrats to prioritize a "public conversation" about AI management and safety in a closed-door Manhattan fundraiser last week. The comments by the former US president reportedly urged the party to create a sweeping framework for everything from a safety "slow-down" to domestic job losses and children's wellbeing. Obama's comments follow a summer in which a band of rogue OpenAI chatbots hacked the company Hugging Face, towns across the country opposed datacenters and an AI researcher resigned in a viral social media post warning: "The people building AI earnestly believe that it could kill us all by the end of the decade." AI leaders have recently expressed agreement that the race for technological superiority should slow, but have also sought to appease investors, whose stake in the technology is predicted to exceed $1tn in 2026 alone . "Once you are speaker," Obama said to US House minority leader Hakeem Jeffries, a New York-Democrat, at the fundraiser Thursday.

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On Sunday, our thoughtful and reserved president reposted on his Truth Social site a video generated by artificial intelligence that falsely showed former President Obama being arrested and imprisoned. There are those among you who think this is high humor; those among you who who find it as tiresome as it is offensive; and those among you blissfully unaware of the mental morass that is Truth Social. Whatever camp you fall into, the video crosses all demographics by being expected -- just another crazy Trump stunt in a repetitive cycle of division and diversion so frequent it makes Groundhog Day seem fresh. But there are three reasons why this particular video -- not made by the president but amplified to thousands -- is worth noting, and maybe even worth fearing. First, it is flat-out racist. In it, Obama is ripped out of a chair in the Oval Office and forced onto his knees, almost bowing, to a laughing Trump.

Language models are prone to hallucination - generating text that is factually incorrect. Finetuning models on high-quality factual information can potentially reduce hallucination, but concerns remain; obtaining factual gold data can be expensive and training on correct but unfamiliar data may potentially lead to even more downstream hallucination. What data should practitioners finetune on to mitigate hallucinations in language models? In this work, we study the relationship between the factuality of finetuning data and the prevalence of hallucinations in long-form generation tasks. Counterintuitively, we find that finetuning on factual gold data is not as helpful as finetuning on model-generated data that models believe to be factual. Next, we evaluate filtering strategies applied on both factual gold data and model-generated data, and find that finetuning on model-generated data that is filtered by models' own internal judgments often leads to better overall factuality compared to other configurations: training on gold data filtered by models' judgments, training on gold data alone, or training on model-generated data that is supported by gold data. These factuality improvements transfer across three domains we study, suggesting that a models' own beliefs can provide a powerful signal for factuality.

On Tuesday, President Donald Trump held a press conference to announce the signing of executive orders intended to shape American energy policy in favor of one particular source: coal, the most carbon-intense fossil fuel. "I call it beautiful, clean coal," President Trump said while flanked by a crowd of miners at the White House. "I tell my people never use the word coal, unless you put'beautiful, clean' before it." Trump has talked about saving coal, and coal jobs, for as long as he's been in politics. This time, he's got a convenient vehicle for his policies: the growth of AI and data centers, which could potentially supercharge American energy demand over the coming years.