plus, stephen welcomes senator bernie sanders and musical guest brandi carlile featuring jon batiste stay homin.' and now, live on tape from a safe distance, it's stephen colbert. >> stephen: hey, everybody, welcome to "a late show." i'm your host, stephen colbert. how are you guys doing tonight? i can't hear you! because i am alone. so alone. i'm alone, right, pete? >> oh, you are so alone. >> stephen: thank you. now as you can tell from my blue blazer i'm all cressed up for a cocktail party, but evidently, the network thinks we should do a show. what's up? okay, here's big news. in the democratic primary there's big news, because there is no democratic primary because today, senator bernie sanders announced he was dropping out of the 2020 democratic race. i guess during a pandemic, crazy ideas like medicare for all just don't resonate. bernie addressed his supporters this afternoon in a live stream. >> i want to thank the many hundreds of thousands of americans who attended our rallies, town meetings, and house parties from new york to california. some of these events had over 25,0