There's an excellent post at Daily Kos about switching to Bernie. It's well done and intelligent.

[madfloridian]

I'm changing my stance on Bernie Sanders

The poster gives several reasons why they are switching. A couple of my favorites.

2. If we lose... the country still moves leftward.

Allow me to discuss the concept of the Overton Window. The Overton Window is the idea that the gulf between the two main parties must not be large. In other words, if one of the main political parties is far right, the other must be centrist to center-right. We see this here in America, where a far right party is one of the main parties, and a centrist party is the other; we also see it in Poland where a similar dynamic exists. The reverse is true as well: If a far left party is one of the main parties, then the other must be centrist to center-left. Just look at Norway or Sweden for an example of this, where far left socialists alternate power with "right wingers" who would be Democrats in America. There is no country where the far left and the far right can alternate in power. The people of a country are either left or right wing by varying shades of left and right.

More:

3. If we lose... we're well positioned in 2018.

If there is a historical pattern that has existed in America since the dawn of our democracy, it's that the first midterm after a change of parties will almost always result in the incumbent president's party being soundly defeated. 2002 was a rare case where this didn't happen, and it didn't happen solely because of 9/11 and Bush's popularity at the time. Look back: 2010, 1994, 1990, 1982, 1978, 1970... these were all very good years for the party not in the White House

One more:

6. If we win... we gain everything.

This is the last point I will make. If we win, we gain everything. If we lose, we will win other victories in the hearts and minds of America - and these victories will last for decades. If we win, Bernie is the fruit of Occupy. If we lose, Bernie's ideas will live on, taking root in the soil, and we will one day reap the harvest.

[Sherman A1]

1. Interesting

If I recall correctly (and I may not) wasn't Bernie still out polling most if not all GOP contenders?

[djean111]

2. I think so. And that would seem more important than polls within the party, unless one

picks a candidate to support from polls, not on issues. The primaries will tell the tale.

[Enthusiast]

3. I like it!

[Enthusiast]

4. I'm 94% Bernie!

http://www.isidewith.com/

[LiberalElite]

6. I'm 99% - no wonder I like him LOL

[retrowire]

8. I'm 83% Bernie!

But to hell with math! I'm 100% supporting him!

[Enthusiast]

9. Yes! I am 100% too!

[ablamj]

10. 98%Bernie

84% Hillary
76% Martin

100% voting for Bernie...Feel The Bern!!!!!

[Autumn]

5. #6 If we win... we gain everything. That just about covers it

Thanks for posting this

[daleanime]

7. +1

[JDPriestly]

11. And this I like

5. If we win... The Republican Party is dead.

Put simply:

If an old, white, Jewish socialist with mussed up hair who hails from a state with fewer people than the average congressional district can be elected President of the United States, the current Republican Party will never again be able to win the presidency. They would have to radically reform their party platform to match the new Overton Window. That, of course, is not possible so long as vile racists make up the core of their party. So long as the Republican Party is dominated by white southern conservatives, we will continue to win the presidency. In the future, the South will not be able to form the core of any political party's platform.

Bernie Sanders represents the end of the Confederacy as a viable political force.

http://www.dailykos.com/story/2015/06/19/1394126/-I-m-changing-my-stance-on-Bernie-Sanders#

For all worried about Bernie's stance on race. This is a very important point.

The Republican Party encourages racism in a subtle way sometimes, quite clearly at other times. Putting economic issues and the declining living standard and ability to save or buy a house of so many Americans in front of American voters across the company is the key to ending the power and attraction of racism.

[hedda_foil]

12. Thank you for finding all of these important stories today, madflo. You're on a roll, lady.

Truly great work, my friend.