The Biden administration’s final rule under the Renewable Fuel Standard aims to modestly increase the amount of biofuels that oil refiners must blend into the nation’s fuel mix over the next three years. But multiple powerful industries aren’t completely happy with the regulation: the agricultural sector says the administration’s blending mandates are too low, while the oil industry argues the levels aren’t achievable. POLITICO’s Kelsey Tamborrino breaks down the details of Biden’s RFS rule, the tricky politics behind it, and how the administration is defending itself. Plus, the Senate failed to override President Joe Biden’s veto of a resolution targeting an EPA truck pollution rule.    Kelsey Tamborrino is a reporter covering clean energy. Josh Siegel is a congressional energy reporter for POLITICO.  Nirmal Mulaikal is a POLITICO audio host-producer. Alex Keeney is a senior audio producer at POLITICO.    For more news on energy and the environment, subscribe to Power Switch, our free evening newsletter: https://www.politico.com/power-switch And for even deeper coverage and analysis, read our Morning Energy newsletter by subscribing to POLITICO Pro:  https://subscriber.politicopro.com/newsletter-archive/morning-energy   Learn more about your ad choices. Visit megaphone.fm/adchoices