US President Joe Biden said his 2024 election rival Donald Trump was willing to "sacrifice our democracy" to regain power, as he kickstarted his campaign with a major speech. "Donald Trump's campaign is obsessed with the past, not the future. He's willing to sacrifice our democracy, put himself in power," Mr Biden said. "Our campaign is different... Our campaign is about America, it is about you, it's about every age and background that occupy this country. It's about the future." The 81-year-old said the fight for democracy was a "sacred cause" in his speech, a day before the third anniversary...