As President Joe Biden prepares to pitch what's likely to be a $3 trillion infrastructure package this week to help prepare the country for the growing threats from climate change, Senators Joe Manchin and Lisa Murkowski will be crucial in determining whether that plan draws bipartisan support, or if Democrats will go it alone and use reconciliation to move the legislation. POLITICO’s Anthony Adgragna explains. Kelsey Tamborrino is an energy reporter and author of Morning Energy. Anthony Adragna is an energy reporter and author of Morning Energy. Nirmal Mulaikal is a POLITICO podcast producer. Irene Noguchi is the executive producer of POLITICO’s audio department. Jenny Ament is the senior producer of POLITICO’s audio department. Carlos Prieto is a POLITICO podcast producer.