Sanders was quick to defend his support of Clinton in the general election in 2016.
"Oh really? I didn't know that," he responded. "I thought I ran all over the country into Nevada and everybody else working as hard as I humanly could to see that Hillary Clinton was elected president of the United States."
"And one of the things, I take a little bit of umbrage at, OK, is just that," he added.
Sanders in 2020 speaks frequently about 2016, but only to highlight the ascent of his policies within the Democratic party. The hard feelings -- among both his and Clinton's supporters -- that escalated during that primary and hardened after Donald Trump's victory are rarely discussed, but never too far from the surface. When questioned, Sanders, like he did on Thursday, is quick to note his considerable travel on the nominee's behalf. By his campaign's count, Sanders did 39 rallies for Clinton in 13 states over the final three months of the 2016 general election.