The House Intelligence Committee said it wanted to see the evidence by 20 March.
The two leaders were scheduled to meet at the White House on 14 March, but will now meet on 17 March.
Theresa May faces daunting legislative hurdle in race to meet the two-year Brexit timetable.
Amadou stood against President Mahamadou Issoufou in elections in March, 2016.
This is not the first time Pyongyang has threatened to launch an attack on annual drills.
The American Healthcare Act would however offer estimated savings of $337bn to the federal budget by 2026.
The press secretary tried to suggest that Trump meant other forms of surveillance.
Here is how MPs in the House of Commons voted on measure for 'meaningful' vote on Brexit deal.
This is what Theresa May will have to do to split from the economic and political bloc.
Peers will not seek reinstatement of amendment on guaranteeing EU citizens rights.
MPs have overturned the upper house amendment on EU nationals' rights. Here is how your MP voted.
The far-right leader squared off with Rutte in a debate in Rotterdam.
Article 50 set to be passed as MPs vote down peer-proposed changes to bill.
Downing Street says PM will launch not Brexit process on Tuesday - even if MPs give her go-ahead
Erdogan accused Dutch politicians of behaving like 'Nazis' and compared Netherlands to 'banana republic'.
One leader just starting out at president, the other battling to win their fourth election
If the second IndyRef campaign follows the same trajectory as the first, we'll have an overwhelming majority.
With two days before the vote, the front runners debated healthcare, immigration and the economy.
UK prime minister says call for second Scottish referendum will cause 'huge uncertainty' during Brexit talks.
Current events could be a way for aliens to see how our society copes under huge pressure.
Watch woman shoot rapid-fire questions at Spicer as he visited a Washington DC store.
More than 80% voted for independence in the symbolic vote.
First Minister warns of the economic threat of Brexit - but economic implications of independence are far worse.
First minister of Scotland made the surprise announcement to the media in Edinburgh.
Protests in Rotterdam and Istanbul came after Netherlands stopped Turkish politicians holding rallies due to fears that tensions might spill over into expat communities.
Florida resort will provide backdrop for first meeting of superpower leaders since Trump became US president.
Buhari likely to return to the UK, where he already spent 51 days to undergo medical tests.
SNP leader wants to hold the ballot between Autumn 2018 and Spring 2019.
A diplomatic spat has broken out between Turkey and several EU countries, after pro-Erdogan rallies were banned in European countries.
Parrikar's swearing-in ceremony as Goa chief minister is expected to take place on Tuesday, 14 March.