Senator Bernie Sanders on Thursday said he didn't have "many alternatives" other than forgoing his bid to run in the 2024 presidential elections and backing President Joe Biden's re-election.<br /><br />Sanders, who endorsed Biden's re-election bid for the White House, in an interview with MSNBC, said, "I don't think one has many alternatives."<br /><br />"What's at stake is the future of American democracy."