Trump caused uproar when he suggested on the campaign trail he would check first if a NATO ally was up to date with its dues before he would consider coming to its aid.
Here is what we know so far about the terror attack, the deadliest in Britain since 2005.
Donald Trump faces mounting calls for proceedings to be opened amid scandals
Explosion at performance by American pop star Ariana Grande
"The threats and blackmail which have been put on the table are intolerable," Prime Minister Mariano Rajoy told a hastily convened press conference.
European Commission nominated to represent EU in Brexit talks; negotiations expected to begin after UK election on June 8
Before his election on May 7, Macron had spoken in favour of cancelling part of Greece's debt mountain, equivalent to 180 percent of annual output, to give the country a chance to recover from its economic depression.
A crowd estimated at 10,000 people by local media waved European Union flags and chanted "Democracy! Freedom for Hungary!" as they made their way toward the parliament building, escorted by police cars.
Barnier will lock horns with Britain's Brexit minister David Davis who has predicted "the talks will be tough and at times even confrontational," despite a mutual desire for good future ties.
Ministers from the 19-member single currency bloc must confront the sensitive topic at talks in Brussels after Greek lawmakers fulfilled the eurozone's latest demands for painful reforms in a vote last Thursday.
Pedro Sanchez to helm divided PSOE, threatening conservative minority government
Spain’s Socialists today will choose a new leader in the latest attempt by one of Europe’s struggling centre-left parties to revive its sagging fortunes.
The months-long "Malta Files" investigation into tax evasion, money laundering and corruption has mobilised 49 journalists in 16 countries, according to the French online news site Mediapart.
A source close to the matter confirmed that the investigation was under way, without giving further details.
"Iranians passionately took part (in) the political life of their country. I congratulate President Rouhani for (the) strong mandate received," Mogherini said on her twitter account.
The newly-elected Macron and the Italian premier will make a joint declaration on Sunday ahead of a dinner at the Elysee Palace.
The man, who was detained Monday in the Paris region and has been jailed pending trial, was previously unknown to French anti-terrorist investigators.
"We're heartbroken, really," said British producer Elizabeth Morgan Hemlock, who is currently working with a Paris-based director on a documentary about intelligence agencies.
Date of next round of talks likely to be announced in mid-June
Scots rejected independence in a 2014 referendum by 55 percent, and a new poll on Friday found that support for going it alone remains at 45 percent.
Top prosecutor decides to discontinue rape probe on Assange