Welcome to Omni Talk's Retail Daily Minute, sponsored by Mirakl.

In today's Retail Daily Minute, Omni Talk's Chris Walton discusses:

• Amazon launches Amazon Now in Seattle and Philadelphia, promising 30-minute delivery through proprietary micro-fulfillment centers using Amazon Flex drivers.
• Walmart reports record Black Friday and Cyber Monday results, delivering 57% more orders with 44% delivered in under three hours.
• Costco sues the Trump administration for tariff refunds, joining 50 companies as the Supreme Court prepares to rule on presidential trade authority.

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Be careful out there!