Kerry: 'Absolute shock' over Trump discussing Biden with Ukraine leader

Former Secretary of State John KerryJohn Forbes KerryDemocrats fear Ohio slipping further away in 2020 He who must not be named: How Hunter Biden became a conversation-stopper Rep. Joe Kennedy has history on his side in Senate bid MORE on Monday said he’s in “absolute shock” over reports that President Trump asked Ukrainian leaders for information on former Vice President Joe BidenJoe BidenWarren defends, Buttigieg attacks in debate that shrank the field Five takeaways from the Democratic debate in Ohio New study: Full-scale 'Medicare for All' costs trillion over 10 years MORE, a 2020 White House hopeful. 

“My reaction is one of absolute shock and amazement that, apparently, within hours or days of the Mueller testimony, the president is on the telephone putting American foreign policy in hock while he extorts the leader of another country to Russia's advantage,” Kerry said Monday on MSNBC’s “Morning Joe.”

A call between Trump and the Ukrainian president has dominated discussion in Washington amid reports that Trump asked for help in getting dirt on Democratic presidential front-runner Joe Biden. 

Trump and administration officials have denied the reporting, but have not released a copy of the whistleblower complaint or a transcript of the call.

The Wall Street Journal reported that during the call Trump asked Ukrainian President Volodymyr Zelensky to look for dirt on Biden. 

Trump has not denied that he urged Ukraine to investigate the former vice president. 

The president, on Sunday, doubled down on his call for Biden's dealings with Ukraine to be investigated, insisting there was no quid pro quo involved in the talks with the Ukrainian president, calling it a "perfect conversation."

Former special counsel Robert MuellerRobert (Bob) Swan MuellerFox News legal analyst says Trump call with Ukraine leader could be 'more serious' than what Mueller 'dragged up' Lewandowski says Mueller report was 'very clear' in proving 'there was no obstruction,' despite having 'never' read it Fox's Cavuto roasts Trump over criticism of network MORE has said he found evidence that Trump’s 2016 campaign welcomed foreign assistance from Russia during the election. 

The allegations over Trump’s call with Ukraine have raised new calls by some House Democrats for an impeachment inquiry.

Speaker Nancy PelosiNancy PelosiTrump-GOP tensions over Syria show signs of easing Democratic debate starts with immediate question on Trump impeachment White House, Pentagon, Giuliani reject House subpoenas MORE (D-Calif.) has remained hesitant to call for impeachment but warned of a “new stage of investigation” if the Trump administration blocks the whistleblower.