President Joe Biden entered the White House with a climate agenda that was the most ambitious in history. But a year later, the president is struggling to notch major wins and his progressive base is losing patience. POLITICO’s Josh Siegel reports. Kelsey Tamborrino is a reporter covering clean energy and is the host of the POLITICO Energy podcast. Josh Siegel is an energy reporter for POLITICO. Nirmal Mulaikal is a POLITICO audio host-producer. Carlos Prieto is an audio producer for POLITICO. Raghu Manavalan is a senior editor for POLITICO audio. Jenny Ament is the interim executive producer of POLITICO’s audio department.