(Bloomberg) -- President Joe Biden called for new taxes on the wealthy and corporations and warned Republicans would roll back policies he argued had saved the US economy, setting out core themes as he kicked off his reelection campaign.Most Read from BloombergFlorida Is Losing Its Affordability Edge After Drawing a Flood of New ArrivalsEric Schmidt Buys Abandoned Alfa Nero Superyacht for $67.6 MillionErmotti Suggests ‘Massive Downsizing’ Might Come to Credit Suisse’s Investment BankAfrica’s Ric