Personally, I'd tell him to go pound sand.

But Biden is much more diplomatic than me, and I'm sure he would agree to various compromises with Sanders, although Medicare for All almost assuredly won't be one of them. Whatever concessions he offers won't win him over even one voter from the Bernie-or-Bust crowd, though, so, I hope whatever compromises he agrees to, it doesn't hurt handicap his overall chances in the general.

the future, More progressives need to get the levers of power and build consensus and coalitions, not alienate “the establishment.”

I think that you are right. No one is getting any Bernie or Bust votes but Bernie, but I think that there are a large number of Bernie sympathizers that would vote for Joe if he put some of Sanders policies into the Platform. The percentage of Sanders supporters that are Bernie or Bust people is debatable. I would like to see a reconciliation once we have one candidate.

If you could add a lot of Sanders people to the base that just voted for Biden in South Carolina, I think that you would have a campaign that would beat the tar out of Trump. We could combine a lot of Sanders Progressives with Biden Centrists, and Joe would bring in a lot of Independents, former Obama voters. We need a consensus candidate that can create a big tent for the General Election. It might be possible.

Hate Sanders all you want but a significant portion of the population supports M4A. If Biden gets the nomination, he will need to appeal to those voters.

Actually, if he loses without a super majority, it will be a complete clusterfuck. Best he win and try to get everyone to rally around him because otherwise Trump will get reelected without a totally unified party. And I just don't see Sanders unifying the party if he loses.

No one takes party platforms seriously. They are grandiose political ads, not actual legislative initiatives.
And I really don’t see any scenario for a truce, since both would be involved in their last chance to win the White House.

No, the mending fences and joining forces will have to wait until there is a winner and, of course, a loser. Don’t know how, but we’ll have to do it.

Bernie will probably go into the convention with the most delegates but not the majority. He will fight to the end for the nomination; That's his DNA.

Cry and cry and cry that the system is unfair, even though he agreed to the rules. Then they'll send him home.

Part of the appeal of Biden is not forcing every downballot Democratic candidate to run on Medicare for All.

Joe is all about strengthening the ACA. It was a big fucking deal to him.

People are suffering to buy inadequate plans and then living with major financial loss because of it. Junk insurance is a reality and we need something stronger. I would like to see him sign onto Send. Warren's plan.

We do need something stronger. It needs to be strengthened and a public option added. We need to do this in steps. There is no way we are going to go from where we are today to what we want without some sort of incrementalism.

THE BIDEN PLAN TO PROTECT & BUILD ON THE AFFORDABLE CARE ACT
I. GIVE EVERY AMERICAN ACCESS TO AFFORDABLE HEALTH INSURANCE

From the time right before the Affordable Care Act’s key coverage-related policies went into effect to the last full year of the Obama-Biden Administration, 2016, the number of Americans lacking health insurance fell from 44 million to 27 million – an almost 40% drop. But President Trump’s persistent efforts to sabotage Obamacare through executive action, after failing in his efforts to repeal it through Congress, have started to reverse this progress. Since 2016, the number of uninsured Americans has increased by roughly 1.4 million.

As president, Biden will stop this reversal of the progress made by Obamacare. And he won’t stop there. He’ll also build on the Affordable Care Act with a plan to insure more than an estimated 97% of Americans. Here’s how:

Giving Americans a new choice, a public health insurance option like Medicare. If your insurance company isn’t doing right by you, you should have another, better choice. Whether you’re covered through your employer, buying your insurance on your own, or going without coverage altogether, the Biden Plan will give you the choice to purchase a public health insurance option like Medicare. As in Medicare, the Biden public option will reduce costs for patients by negotiating lower prices from hospitals and other health care providers. It also will better coordinate among all of a patient’s doctors to improve the efficacy and quality of their care, and cover primary care without any co-payments. And it will bring relief to small businesses struggling to afford coverage for their employees.

Increasing the value of tax credits to lower premiums and extend coverage to more working Americans. Today, families that make between 100% and 400% of the federal poverty level may receive a tax credit to reduce how much they have to pay for health insurance on the individual marketplace. The dollar amount of the financial assistance is calculated to ensure each family does not have to pay more than a certain percentage of their income on a silver (medium generosity) plan. But, these shares of income are too high and silver plans’ deductibles are too high. Additionally, many families making more than 400% of the federal poverty level (about $50,000 for a single person and $100,000 for a family of four), and thus not qualifying for financial assistance, still struggle to afford health insurance. The Biden Plan will help middle class families by eliminating the 400% income cap on tax credit eligibility and lowering the limit on the cost of coverage from 9.86% of income to 8.5%. This means that no family buying insurance on the individual marketplace, regardless of income, will have to spend more than 8.5% of their income on health insurance. Additionally, the Biden Plan will increase the size of tax credits by calculating them based on the cost of a more generous gold plan, rather than a silver plan. This will give more families the ability to afford more generous coverage, with lower deductibles and out-of-pocket costs.

Expanding coverage to low-income Americans. Access to affordable health insurance shouldn’t depend on your state’s politics. But today, state politics is getting in the way of coverage for millions of low-income Americans. Governors and state legislatures in 14 states have refused to take up the Affordable Care Act’s expansion of Medicaid eligibility, denying access to Medicaid for an estimated 4.9 million adults. Biden’s plan will ensure these individuals get covered by offering premium-free access to the public option for those 4.9 million individuals who would be eligible for Medicaid but for their state’s inaction, and making sure their public option covers the full scope of Medicaid benefits. States that have already expanded Medicaid will have the choice of moving the expansion population to the premium-free public option as long as the states continue to pay their current share of the cost of covering those individuals. Additionally, Biden will ensure people making below 138% of the federal poverty level get covered. He’ll do this by automatically enrolling these individuals when they interact with certain institutions (such as public schools) or other programs for low-income populations (such as SNAP)

collaborate and craft a joint platform that brings everyone together The exact nuances of what that will look like is irrelevant IMHO.

At this point we don't know who the nominee or top vote getter will be, only that its likely to be one of the 2.

So the question is how do factions come together, and is there the commitment for that to happen.

If it becomes a winner-take-all, dominate-or-be-domininated type of struggle - that would not end well.

...Neither candidate would pick the other as a running mate.

As regards Sanders supporting the Dem nominee, I think people should not be surprised if it doesn't happen. I expect the next 5 months will become bitter, based on what we've seen from his supporters so far, not least today in their reaction to Mayor Pete.