Umno veteran Shahrir Abdul Samad said it was impossible for his party to form an alliance with DAP because of the latter's secularist tendencies.<br /><br />At a forum today, Shahrir said DAP had an unsuccessful track record when it attempted to collaborate with conservatives such as Bersatu and PAS in the past.<br /><br />"The conservatives (in Pakatan Harapan) were Bersatu. These conservatives were all former Umno members. They cannot sit together with secularists. Hence (Harapan) broke apart," he said.