Riemer wuxuu ka mid noqday ololihii doorashada madaxtinimada ee Obama sanadkii 2008
, oo Chicago ka soo shaqeeyay isagoo ahaa Agaasimaha Codbixinta Dhallinyarada Qaranka. Mas'uuliyadihiisa waxaa ka mid ahaa taageeridda hawlgallada Ololaha ee gobollada hore (Iowa, New Hampshire) iyo la shaqeynta hoggaamiyeyaasha ardayda si ay u taageeraan shabakadda Ardayda Barack Obama. Codbixiyayaasha da'da yar waxay qeyb muhiim ah ka ahaayeen isbahaysiga codbixiyayaasha gobolka ee Obama. Ololaha Obama ka dib, Riemer wuxuu u shaqeeyay AARP isagoo ah lataliye sare oo ku saabsan amniga hawlgabka iyo sidoo kale mutadawiciinta bulshada.