Illustration: Rebecca Zisser / Axios

2017 has been retail's year of reckoning. For decades, brick-and-mortar retailers have taken on too much debt, built too many stores, and failed to understand the potential or practicalities of e-commerce. The price of these missteps have been steep: More than 6,000 stores have closed so far in 2017, the most of any year on record, and there are 65,000 fewer retail jobs in America than in January of this year.

On the other side of those stats is Amazon, which is taking an ever-growing slice of a rapidly expanding e-commerce pie, along with its army of third-party sellers. The Amazon revolution is one symptom of the growing dominance of mega tech firms that are changing the way America works and shops. Hop into our Black Friday Future of Retail stream for the big stories that will shape the consumer world in the years ahead.

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Biden on Supreme Court fight: "This is about whether or not the ACA will exist"

Joe Biden made health care the overwhelming focus of his remarks from Wilmington, Delaware, on Sunday, stressing that the Senate confirmation battle over Judge Amy Coney Barrett's nomination to the Supreme Court is about preserving the Affordable Care Act in the midst of a pandemic.

Why it matters: Democrats are aggressively pushing the message that Barrett, who has previously criticized Chief Justice John Roberts for his 2012 ruling salvaging the ACA, will seek to invalidate the law when the Supreme Court hears a Trump administration-backed lawsuit against it on Nov. 10.

McMaster: Trump's peaceful transition comments are a "gift to our adversaries"

President Trump's refusal to commit to a peaceful transfer of power if he loses November's presidential election is a "gift to our adversaries," Trump's former national security adviser H.R. McMaster said Sunday.

The big picture: McMaster, a retired three-star general, said that the American people must understand that the military will have "no role" in a presidential transition and that it's "irresponsible" to even talk about it as a possibility.

Trump says Supreme Court ending Obamacare would be "a big WIN"

Photo: Spencer Platt/Getty Images

President Trump on Sunday tweeted that the Supreme Court invalidating the Affordable Care Act would be "a big WIN for the USA!"

Why it matters: Democrats have argued that confirming a Trump-appointed justice to the Supreme Court would put the Affordable Care Act, which protects pre-existing conditions, in jeopardy. Trump's Supreme Court pick, Amy Coney Barrett, has written that she disagreed with Chief Justice John Roberts when he ruled to uphold the law.