From the other thread that was locked, Dash_Riprock asked "How and where did you get this conclusion?"
http://www.cbsnews.com/news/poll-bernie-sanders-is-most-popular-u-s-politician/
Here.
Dash_Riprock also said, Dash_Riprock said, "This is a man who ran against what may have be the most unpopular female politician in American history and still lost the nomination."
Because he was new to the national stage and largely unknown and didn't do well in the south, which was his own mistake.
But after the fact, and after the country has come to know him, he is the most popular politician.
Also from the other thread, said "This just makes no sense. If he was the most popular politician in the US, he would have won the primary and he'd also be the president. He wouldn't even have needed to join the Democratic party to run!"
Again, knew to the national ticket. He is the most popular politician NOW. Hell he might have been then too, but it was a rigged democratic primary anyway, so what ever. Also a lot of the the voting registrations had been locked out way before he was as big as he was, and independents that might not usually vote in primaries didn't get a chance to vote for him.
The Poll