Nobody.

It all depends on the people who win the seats next year. I think GOP members won't work with any Democrat. Let's hope we have more Dems in the next Congress.

Republican dominated Congress and Senate. Look how they have staved off President Obama. What ever they say will be poo pooed by Republicans...and the Republicans will be pissed their candidate lost especially the Tea Party candidates.

More Republican than Dem. seats will be on the line.
Too soon to tell.
Too many variables, and its still 1 and 1/2 year away.
A lot can happen.

To have a few Republicans lose their seats.

1) To get elected he will have to bring so many new voters into the system, so he will have long coattails and would more likely be dealing with a better Congress compared to what Hillary would have. And

2) If it is a Republican Congress, Bernie would be better at standing up to them and resisting them because his politics are liberal-progressive, while Hillary is closer to the center and actually has a lot of common ground with the Republicans.

Well put.

...and be passionate about doing it.

They can work with him or be shamed by not sharing his interest in the regular citizen.

Other candidates won't work it that way.

They literally passed a bill in DC to let employers fire women who use birth control just this past week.

http://plannedparenthoodaction.org/elections-politics/newsroom/press-releases/planned-parenthood-condemns-house-vote-misplaced-agenda-against-women/

And I think others won't for fear of them returning the favor.

If you have skeletons, you can't be too outspoken.

It's NOT the President who will not work with Congress. It's the Congress with their insistence on pleasing the RW fringe.

So might as well have the actual one.

In particular, the American people want actual leadership on actual issues, not evasion, bullshit equivocation and 12 months of "This is why the Bible is the most inspirational book to me".

So any candidate that gets up there and actually LEADS will have a distinct advantage, going into the general.

Any candidate still running 10-20 year old bob shrum scripts about soccer moms, values voters and not saying anything controversial, is going to be at a disadvantage.

And surprised to find out that we're in the century of the Millennial voter, now, not the Boomer.

For my vote (Bernie), I chose to take 'effectively' as meaning both doing the least harm to the American people and possibly doing things that could benefit them, and not 'passing and signing legislation simply to be seen as 'doing something' and 'being bipartisan'. Sometimes, with a given 'partner', the best thing you can do is not agree with them.

so put him at the top!

You may like him, as do I. But the idea that he would be better at dealing with a GOP congress is laughable.

Both house and Senate?

I don't see taking back the house any time soon.

And that presupposes we're able to take back enough state legislatures.

the trend toward strongly Democratic areas being lumped in with majority Republican districts will continue. Gerrymandering as an issue is something I wish our government would put a stop to, but it's not likely as long as the more powerful can stack the deck decade after decade. Gerrymandering is a big huge elephant in the room that those in power rarely talk about.

He would have the edge that Hillary Clinton does not have. He is a man. Conservative men will compromise with other men even when they disagree with him, but never with a woman. That is how they are. I still think it will depend on the Congress we give them to work with. So, that is why I chose Bernie Sanders in this poll. I'm not one to scream misogyny every time we turn around, but when it comes to the Republican Party and especially Teabaggers, there is just no way Hillary could get them to work with her. That is through no fault of her own, and has nothing to do with her abilities, but because of how most conservative men think and act. If you think they have been throwing temper tantrums and obstructing throughout Obama's presidency (and they have been doing exactly that), wait until you see how they would be with a woman. And on top of that, they have a long standing hatred for her that knows no bounds. They will stop at nothing to obstruct her at every turn, whereas, while they may disagree with Bernie Sanders, they will be more likely to work with him on some things, at least.

So, while that may play a role in the outcome, a bigger "if" revolves around what Congress we give either of them to work with. If we give them another Teabagger/extremist right wing Congress, neither of them is going to be able to get much done. The Republicans have been pitching temper tantrums for decades now, if they don't get their way. They will go beserk if they have to deal with a woman leading the country.

That is just my $0.02 worth on it. It is neither right nor wrong, but just how I predict it would or possibly will go.

But I think another question that could be asked is; who would you rather see appoint the next 2, possibly 3 Supreme Court Justices? That is going to be way more important than playing nice with Boner or Mcconnell

She or He will require a superb relationship with their veto pen, and have a good team of lawyers to craft Executive Orders.

And nothing important will get done, unless we change the Congress.

So, obviously he can do it. The sad part is that neither one of them will be able to do it if we don't find a way to get a more Democratic congress in 2016. I, for one, am sick of the gridlock caused by the Republicans pitching temper tantrums when they don't get their way. And don't even get me started on the Teabaggers. So, between Hillary Clinton and Bernie Sanders, who can work with Congress the best will come down to the Congress we give them. The Presidential election is very important, but the left to right balance of Congress matters an awful lot too. Hillary would get more flak from Congress, even if it is just the regular sized asshole Republicans, and even more if it's more Teabaggers. That is not to say it is her own fault. It's because they hate women and especially her. That has nothing to do with her abilities but with their control over our government and their shitty attitude toward women, especially women with actual opinions of our own.

So, honestly, I think either of them could or could not work with Congress based on the Congress we give them. If we give them a shit Congress to work with, neither of them will fare very well.