Marie Yovanovitch on Capitol Hill castigates White House for foreign policy conduct, says she was removed over 'fictitious' reports she was disloyal to US president

Young Israel's Joseph Frager says he met the men at a Trump fundraiser and later gave them the 'Lovers of Zion' award in vain hope they would donate to his organization

President tweets that he won't allow ambassador to testify before 'a totally compromised kangaroo court;' Schiff calls move further evidence of obstruction of Congress

New source said to corroborate original informant's complaint about Trump's efforts to pressure Ukraine into investigating former vice president Joe Biden

At center of Naftogaz plan are two Soviet-born Florida real estate entrepreneurs, Lev Parnas and Igor Fruman, and an oil magnate from Boca Raton, Harry Sargeant III

Legal team for informant says person made 'a protected disclosure' about the US president's alleged request for Ukraine to investigate his rival Joe Biden

At center of political scandal and amid the Trump administration's disregard for long-held processes, diplomats worry US foreign policy arm's reputation will be tarnished

Cache of emails released after House questions ex-envoy Kurt Volker reveal Trump officials wouldn't schedule meeting with Zerenskiy until Kyiv announced probe into Democratic rival

US president’s attacks come amid escalating impeachment fight over his effort to pressure the government of Ukraine to investigate Biden

US secretary of state doesn't specify whether he thought content of phone conversation was inappropriate