Prime Minister Najib Abdul Razak's press secretary has inadvertently confirmed plans to have DAP banned prior to the next election, said one of the party's lawmakers.

Kluang MP Liew Chin Tong said Tengku Sariffuddin Tengku Ahmad did this when he raised a poser about whether DAP can use its logo in the next general election.

"Inadvertently, Tengku Sariffuddin’s statement has also confirmed the thinking of Najib's inner circle that the embattled prime minister’s game plan is indeed to ban DAP just before the next general election," Liew said in a statement today.