After an erruption of even more scandals among Republican Senate candidates, FiveThirtyEight’s Nathaniel Rakich returns to The Downballot this week to discuss the effect these sorts of scandals can have on competitive races; whether Democrats stand a chance to keep the House; and the different ways pollsters create likely voter models.

Co-host David Beard and guest host Joe Sudbay also discuss Dr. Oz, puppy killer; the GOP’s hypocrisy regarding Herschel Walker’s ever-growing list of scandals; Texas Attorney General’s Ken Paxton desperate attempts to avoid testifying in an abortion case; and Brazil’s presidential runoff, where former President Luiz Inacio Lula de Silva remains the favorite despite far-right incumbent Jair Bolsonaro’s better-than-expected first-round showing.

Episode transcript.