The upcoming Simpang Jeram by-election is seen as a "gateway" for the "Perikatan Nasional wave" to spread to Johor, said Kedah PAS chief Muhammad Sanusi Md Nor.

Speaking to reporters after the launch of the PN campaign machinery in Bakri, Johor, last night, Sanusi urged voters to "experiment" to ensure that the "PN wave" was maintained and send a strong signal to Pakatan Harapan and BN.

"This wave that we saw during the (Aug 12) state elections will hit Johor and reach Singapore. We will...