
"Pheu Thai wants to bring back Thaksin from his exile," Chalerm said in the campaign speech in Nakhon Phanom on Wednesday.
Chalerm was in the northeastern province to woo votes for Pheu Thai candidate Anurak Boonson in the by-election for Nakong Phanom's Constituency 3.
In the campaign pitch to his constituents, he said the by-election was a direct race between Pheu Thai and Bhum Jai Thai parties.
He said Isaan people will have to make a choice if they want to bring about "happiness" made possible by popular policies under Pheu Thai and its two preceding parties - Thai Rak Thai and People Power.
He also pledged to impose a five-year debt moratorium for all retail debtors with a loan not exceeding Bt500,000.