Global News

"Four senior members of Donald Trump’s entourage have held secret discussions with some of Kyiv’s top political opponents to Volodymyr Zelenskyy, just as Washington aligns with Moscow in seeking to lever the Ukrainian president out of his job.

The senior Trump allies held talks with Ukrainian opposition leader Yulia Tymoshenko, a remorselessly ambitious former prime minister, and senior members of the party of Petro Poroshenko, Zelenskyy’s immediate predecessor as president, according to three Ukrainian parliamentarians and a U.S. Republican foreign policy expert."

Trump seeking regime change in Ukraine:

https://www.politico.eu/article/donald-trump-allies-secret-talks-volodymyr-zelenskyy-opposition-ukraine-elections-yulia-tymoshenko-petro-poroshenko/

I'll explain the situation from the inside 

Even if there was such a conversation, do Amerikans really think Poroshenko or Tymoshenko are real candidates for President?
The only thing they are 100% candidates for is prison.

These two have been in office since the 90's. Poroshenko has been an official in every government. He is an opportunist for whom money comes first.

Tymoshenko has been tried three times, twice for corruption.

Builder Community Growth / Researcher /onchain /build

Strategic communications advisor.

Recovering politics reporter, HuffPost.

the country needs to survive first, and then the election
Poroshenko will not be supported, people know and remember, the way his PR company is working now will bring him maximum 15%

What's more, Poroshenko at least has positioned himself to Zelenskyy's right, iirc? In other words, it doesn't necessarily help the Trump team get a more pliant leader.