Soon-to-debut CBS Late Show host Stephen Colbert just trumped Jimmy Fallon’s announcement this morning he’d booked GOP White House frontrunner Donald Trump for September 11, announcing he’d booked Joe Biden for September 10.

VPOTUS Biden will make his inaugural visit to Late Show with Stephen Colbert that night, as viewers wonder if he will use the CBS platform to announce his candidacy. Since Biden met with Sen. Elizabeth Warren (D-Mass) on August 22, it’s been widely speculated/reported Biden is considering a 2016 presidential run.

Colbert already had announced Uber CEO Travis Kalanick would be a guest that night, as well as country singer Toby Keith.

Colbert/Fallon Booking War: officially on.