Sir Mekere told the media this morning, prior to his declaration as member-elect for Moresby North-West.
His return to politics comes after a term absence. He was the MP from 1997 to 2012.
From retirement, Sir Mekere said he is making a comeback because he is worried about the country’s future.
He thanked the people of Moresby North-West for giving him the privilege of representing them.
He said he chose to return and play the game instead of watching and criticising.
"The last five years has changed in its democratic character," he said.