Canada retaliates against U.S. tariffs with up to $20 billion in duties, prompting former Finance Minister Chrystia Freeland to defend the USMCA. Meanwhile, a Trump-backed super PAC spends $10 million in the Texas Senate race, and a federal judge blocks new USPS rules that would restrict mail-in voting. The episode also covers the recovery of data recorders from a crashed Amazon cargo plane, new PISA test results showing mixed outcomes for American students, and the start of jury selection in the federal racketeering trial against Huawei.