Philippine President Rodrigo Duterte has agreed to be the ruling political party's vice presidential candidate in next year's elections, the PDP-Laban party said on Tuesday, laying the groundwork for the leader to stay in power beyond his term.

The PDP-Laban party made the announcement ahead of a national assembly on Sept. 8, when it is also expected to endorse Duterte's aide and incumbent Sen. Christopher "Bong" Go to be its presidential candidate in the 2022 polls.

Duterte is making "the sacrifice" and heeding "the clamor of the people," Karlo Nograles, executive vice president of the ruling PDP-Laban party, said in a statement.