The IRI weekly news update highlights significant trends in the packaged grocery market, including Tesco regaining second place in Ireland, AmazonFresh's expansion in Hertfordshire and Bedfordshire, and Iceland's sales growth. Other notable events include Sainsbury's increasing its non-dairy milk range, and an analysis revealing voting shifts among discount shoppers towards Conservative parties. Overall, the grocery market shows growth despite challenges such as falling retail sales and consumer spending hitting a low.