Ukrainian President Volodymyr Zelenskiy said on Saturday that it was a matter of Ukraine’s national security to stay out of U.S. internal politics, particularly its election.

Axar.az reports citing foreign media.

“Ukraine did not and will not allow itself to interfere in the elections and thus harm our trusting and sincere partnership with the USA,” he wrote on Twitter late on Saturday.

Zelenskiy, 42, was a comic actor when he won a landslide election last year. But the first year of his presidency was overshadowed by Ukraine’s unwitting involvement in events that led to the impeachment of Republican U.S. President Donald Trump. Trump had unsuccessfully pressed Ukraine to launch an investigation into his Democratic rival in the 2020 presidential race, former Vice President Joe Biden.

“Never, under any circumstances, it’s acceptable to meddle in another country’s sovereign elections,” Zelenskiy wrote.