Donald Trump Jr. expressed bullish sentiments on Bitcoin and crypto at the Bitcoin 2025 conference in Las Vegas.He announced the creation of a $2.5 billion Bitcoin treasury through the Trump media group, TMGT.Senator Cynthia Lummis mentioned Trump's support for the Bitcoin Act, which aims to acquire 1 million BTC over five years for a strategic reserve.David Sacks, the White House AI and crypto czar, emphasized Bitcoin as the 'financial system of the future' during the conference.