Prime Minister Tun Dr Mahathir Mohamad said Parti Pribumi Bersatu Malaysia (Bersatu) is confident of winning the Tanjung Piai by-election, with signs showing many voters who supported Barisan Nasional (BN) in the last general election are now supporting Pakatan Harapan (PH).<br /><br />The Bersatu chairman however added that some constituents still regard him as UMNO president and he would be going to the ground to campaing and correct that perception.<br /> <br />Dr Mahathir spoke to reporters after chairing a Bersatu Supreme Council meeting on Monday.