Anti-incumbent anger swept across both major political parties in this year’s primary elections, marking a significant shift in American politics. Rhode Island Governor Dan McKee became the first incumbent governor in eight years to lose a primary, and he was just one of many longtime leaders who faced defeat. Across the country, 13 members of Congress lost their bids for reelection—seven Democrats and six Republicans—while at least 16 more politicians attempting to move up to statewide or Senate positions also fell short. Among them were notable figures like Colorado Senator Michael Bennet, who lost his bid for governor. This wave of upheaval has been driven by a mix of factors, including widespread voter frustration with both political parties' leadership in Washington. President Donald Trump has actively targeted some of his Republican rivals, while Democrats grapple with internal generational and ideological divides. Redistricting, or the redrawing of voting districts, has also played a role, leaving some politicians in more difficult positions. Scandals have further contributed to the losses, with some candidates unable to overcome the damage to their reputations. In several races, multiple factors combined to bring down incumbents. For instance, Representative Haley Stevens, a Democrat from Michigan, struggled in her Senate bid despite her experience in Washington, losing to a more progressive rival. Adviser Caitlin Legacki noted that the anti-incumbent sentiment reflects deep voter dissatisfaction, describing it as a "throw the bums out" moment. Progressives in the Democratic Party challenged more moderate members, while younger candidates ousted older ones across various states. Local officials also outperformed those from Washington, and lawmakers seeking higher office found themselves rejected by voters. For Republicans, President Trump’s influence was significant, as his endorsements and support shaped the outcomes of several races. Trump-backed candidates defeated longtime members of Congress like Senator Bill Cassidy and Representative Thomas Massie. In Texas, Trump’s late endorsement of Attorney General Ken Paxton contributed to the defeat of Senator John Cornyn. Meanwhile, the redistricting process, which involved both parties, led to unexpected results, with some politicians losing due to new district lines or even switching parties to avoid being targeted. Scandals also played a crucial role in several races, with some incumbents forced to step down or retire. Democratic Representative Eric Swalwell ended his run for governor and left Congress amid allegations of misconduct, while Republican Representative Tony Gonzales resigned after admitting to an affair with a staffer. Others, like Republican Representative Andy Ogles, found it difficult to overcome past controversies and the impact of new district lines. In some cases, voters clearly preferred candidates without ties to Washington, rejecting both Democratic and Republican incumbents in favor of local or newer politicians.