Would you rather of had Bernie run for President as an independent?!

[Jim Lane]

85. Clinton loses those Southern states with or without Bernie on the ballot

His running as an independent (or Green) in November would have swung some other states, though.

The most obvious example is New Hampshire. Here are the numbers:

2016 Democratic primary
Clinton 95,355 votes
Sanders 152,193 votes

2016 general election
Clinton 348,526 votes
Trump 345,790 votes

We can never know for sure about a hypothetical election, but I think it highly likely that Bernie on the November ballot would have cost Clinton a net of at least 3,000 votes and thus delivered the state to Trump.

If you ask how Clinton might have won the electoral vote, one of the many what-ifs is that, through a combination of campaigning in Wisconsin and succeeding in addressing the voter suppression there, she carries that state, instead of losing it narrowly. Here are the numbers:

2016 Democratic primary
Clinton 433,739 votes
Sanders 570,192 votes

2016 general election
Clinton 1,382,536 votes
Trump 1,405,284 votes

You can think about the what-ifs that would have let Clinton make up a 23,000-vote deficit, but it's a lot harder to envision that outcome if the 570,000 Sanders voters have the chance to vote for him in November. In real life, most of them voted for Clinton. If Bernie had been on the ballot, they wouldn't all have voted for him, but quite a few would have, making it immensely more difficult for Clinton to flip the state.