Who is Joshua Davis, the 13-year-old boy who went viral after Biden's speech?

US President Joe Biden mentioned Joshua Davis, who attended his State of the Union speech, while discussing the need to cap insulin prices. Joshua was diagnosed with Type-1 diabetes when he was 11 months old and has raised awareness about the same since he was 4. During his speech, Biden wished Joshua, who turned 13 on Monday, a "happy birthday".