U.S. Vice President Joseph Biden assured full U.S. support for Ukraine and urged the passing of a law on elections in Donbas when speaking during his meeting with Ukrainian members of parliament, representatives of the presidential administration and members of civic society, Deputy Svitlana Zalischuk from the Petro Poroshenko Bloc parliamentary faction said.

"The Vice President made strong statements about support for Ukraine in financial terms and beyond. And [he] guaranteed that Ukraine is a central topic of any kind of meeting with Putin, whatever the pretext," Zalischuk wrote on her Facebook page.

According to her, Biden also urged at the meeting the simultaneous amendment of the country's constitution and the passing of legislation on elections in the territories beyond Kyiv's control, which "will make it possible for the U.S. to demand return moves from Russia and unity on the [anti-Russian] sanctions from Europe."

The key topics of the meeting were an unsatisfactory level of the fight against corruption and the prospect of a reshuffle of the government, as well as Minsk (international community acting on Russia), Constitution and the electoral law, she said. "And Crimea - what's next," Zalischuk wrote.