Prime Minister Dr Mahathir Mohamad's invitation to Malay politicians to join Bersatu has come a little too late, said Umno veteran Nazri Abdul Aziz.<br /><br />"Maybe it's a little bit too late as we (Umno) have agreed to work together with PAS," he told media at the Parliament lobby.<br /><br />The former minister said there was no turning back from the alliance between both parties, as they had won three by-elections since last May, and aimed to win the next general election.