US Secretary of State Mike Pompeo has been subpoenaed.
A Democratic-led US House of Representatives committee issued the order on Friday.
They want to him to hand over documents regarding contact the US government had with the Ukrainian government.
Earlier this week House Speaker Nancy Pelosi launched a congressional impeachment inquiry of US President Donald Trump.
Putin and Modi discuss trade, peace in New Delhi summit
Russian President Vladimir Putin and Indian Prime Minister Narendra Modi began summit talks in New Delhi on Friday, as New Delhi rolled out the red carpet for the Russian leader.
Indian air travel crippled as IndiGo's pilot crisis enters fourth day
Air travel across India was in turmoil for a fourth day after IndiGo cancelled around 500 flights on Friday, including all from the capital New Delhi, after failing to plan for new pilot flying time regulations.
Lebanon says ceasefire talks aim primarily at halting Israel's hostilities
Lebanese President Joseph Aoun said on Friday that ceasefire talks with Israel are primarily aimed at stopping Israeli hostilities on Lebanese territory, after the Israeli prime minister's office said it seeks economic cooperation.
US to widen travel ban to more than 30 countries, Noem says
The US has announced plans to expand the number of countries covered by its travel ban to more than 30, US Homeland Security Secretary Kristi Noem said on Thursday.
Putin visits Delhi as Russia, India seek to increase and diversify trade
Russian President Vladimir Putin arrived in New Delhi on Thursday to start a two-day state visit, and India and Russia both said they want to boost mutual trade and expand the variety of items in transactions.
