Lowassa moved to CHADEMA on August 4, 2015, just before the general election, after the CCM banned him from running as a presidential candidate.
Lowassa alijiunga na CHADEMA tarehe 4 Agosti , 2015, kuelekea uchaguzi mkuu baada ya CCM kumuondoa kwenye orodha ya wagombea urais katika chama hicho.