Incident involving New York Post, Hunter Biden emails and FBI raises red flags for White House staffers, who fear former NYC mayor may hurt president's reelection chances

Timing of operation suggests hackers of Burisma gas company were searching for material that could damage the Bidens

'We have our country, we have our own problems,' president retorts at press conference in Kyiv

In investigation transcripts, Vindman says there was no ambiguity; Hill says Bolton 'immediately stiffened' when EU envoy said he worked on trade for Oval Office welcome

Within days of meeting Melissa Cohen, presidential candidate's son got the word 'shalom' inked on his arm, to match hers

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

Facing impeachment proceedings after asking Ukraine to probe his chief political rival, US president tells reporters Beijing should do the same

US vice president, a key intermediary between White House and Ukraine, has until now rarely been drawn into Trump controversies

Responding to investigation of claim he tried to strong-arm the Ukrainian president into providing dirt on Joe Biden, US president says Democrats 'want to take away your freedom'