PHILADELPHIA (AP) — As he closes in on the Republican presidential nomination, former President Donald Trump made a highly unusual stop Saturday, hawking new Trump-branded sneakers at “Sneaker Con,” a gathering that bills itself as the “The Greatest Sneaker Show on Earth.” Trump was met with loud boos as well as cheers at the Philadelphia Convention Center as he introduced what he called the first official Trump footwear. The shoes, gold lame high tops with an American flag detail on the back, are being sold as “Never Surrender High-Tops” for $399 on a new website that also sells Trump-branded “Victory47”...