Washington, Mar 20 (Reporter) U.S. President Joe Biden and his predecessor Donald Trump, who have secured enough delegates to become their respective party's 2024 presidential nominee, will win in primaries in the states of Ohio, Florida and Illinois, U.S. media projected Tuesday night. NBC News and other news outlets made the projection shortly after polls closed in these states. Biden and Trump already secured their respective party's nomination last week, meaning that the outcome is largely symbolic. Kansas and Arizona are also holding primaries Tuesday, with results expected later...////...