PPP's Kim talks up GTX success as PPP apologizes for fmr. first lady Kim Keon Hee

The People Power Party candidate Kim Moon-soo also chose to stay in the capital region, in Gyeonggi-do Province, near the border with North Korea.

Meanwhile, some in the conservative bloc seek to distance themselves from the impeached president ahead of the election.

Our correspondent Kim Do-yeon has more.

Continuing his efforts to boost support in the capital region People Power Party candidate Kim Moon-soo on Wednesday chose northern Gyeonggi-do Province, appealing to locals that he's a two-term Gyeonggi-do Province Governor.

As he's the one who started the GTX, an express railway system connecting the outskirts of Seoul to its center, he pledged there will be more of these for all.

"I promise you — I'll make sure anyone can travel anywhere within an hour. I'll deliver a transportation revolution."

Kim started his rally from the northwest and moved clockwise to hit six cities in one day.

Areas Kim rallied also border and near North Korea, and much of the land here remains undeveloped due to longstanding security and environmental restrictions.

Kim says, if elected, he'll lift those limits to attract companies and institutions aiming to create jobs and opportunities in the region.

Meanwhile, his efforts towards a merger with a fellow conservative rival, the Reform Party's Lee Jun-seok, continued as he called the move a game-changer in the current losing landscape.

"As for a dramatic turnaround, there's candidate Lee Jun-seok, who once served as our party leader and is now running independently. I believe that, in the end, he and I will merge our campaigns — and that he could play a key role in leading us to victory in this presidential race. I'm hopeful things will work out."

But Lee Jun-seok is still publicly rejecting the idea.

Still, the outreach continues — PPP lawmaker Ahn Cheol-soo visited Lee on the campaign trail in an apparent attempt to open dialogue.

Momentum is building, though.

Former PPP chairman and the primary runner-up Han Dong-hoon began campaigning for Kim onTuesday— though they haven't appeared together yet.

Han had made clear that he wouldn't hit the trail unless the party distanced itself from impeached ex-president Yoon Suk Yeol.

Now that Yoon has left the party, Han appears to be on board.

And to add to the distancing PPP interim leader Kim Yong-tae publicly apologized for controversies surrounding former first lady Kim Keon Hee.

After his debate proposal for first lady prospects was rejected, he urged the Democratic Party to suggest their own format — saying vetting should still happen.

Kim Do-yeon, Arirang News.