'Seen and Unseen': Barack Obama visits a taco joint Fox News contributor Raymond Arroyo discusses the former president's interactions at the restaurant and more on 'The Ingraham Angle.' NEW You can now listen to Fox News articles! President Barack Obama has been at the center of Democrats’ biggest political fights, from redistricting fights to last year’s gubernatorial races, while former President Joe Biden — despite winning more votes than any presidential candidate in history — has remained