(FILES) (COMBO) This combination of pictures created on March 06, 2024 shows former US President and 2024 presidential hopeful Donald Trump in Las Vegas, Nevada, on January 27, 2024 and US President Joe Biden in Washington, DC, on January 24, 2024.. Joe Biden and Donald Trump square off for a historic US presidential debate this week, with the stage set for what could be a pivotal moment in the 2024 race as millions of potential voters tune in. (Photo by Patrick T. Fallon and SAUL LOEB / AFP) (Photo by PATRICK T. FALLONSAUL LOEB/AFP via Getty Images)