UMNO supreme council member Datuk Irmohizam Ibrahim said the survey is a planned strategy by certain quarters who want to see a rift between the party's top leaders.
He said the party is stable with strong solidarity under the leadership of Najib.
"The leaders of Opposition parties who were envious of the unity and support from the grassroots to top leadership for Najib had gone to the extent of using
The Merkeda Center survey carried out from Jan 21 to Jan 30 found 19.8 per cent of 1,008 respondents choosing Hishammuddin as the next prime minister. UMNO Youth chief Khairy Jamaluddin received 8.6 per cent whiile Datuk Seri Ahmad Zahid Hamidi (8.4%), Rafizi Ramli (3.9%), Mohamed Azmin Ali (3.7%) dan Nurul Izzah Anwar (1.7%).