In this task, you are given an article. Your task is to summarize the article in a sentence.
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Question: He told Fox News a "wiretap covers a lot of different things" and hinted more could emerge in the coming weeks.
Mr Obama has denied the charge and former spy chiefs and several lawmakers have said they have seen no evidence.
The latest senior figure to cast doubt on the allegation was the Republican chairman of the House intelligence committee.
Devin Nunes said on Wednesday he doesn't believe "there was an actual tap of Trump Tower".
Earlier this month, Mr Trump tweeted that President Obama had wiretapped his phones during the presidential campaign.
In a series of tweets, he accused his predecessor directly, asking: "Is it legal for a sitting President to be 'wire tapping' a race for president?"
Talking to Fox News in an interview that will be broadcast in full on Wednesday night, the president made his first comments about the wiretap accusation he made two weeks ago.
He said:  "Wiretap covers a lot of different things. I think you're going to find some very interesting items coming to the forefront over the next two weeks."
Despite repeated requests from reporters, the White House has not provided any evidence to support the president's claim.
White House Press Secretary Sean Spicer has said Mr Trump "used the word 'wiretap' in quotes to mean broadly surveillance and other activities".
And he was not accusing Mr Obama personally, Mr Spicer said.
Mr Trump asked Congress to examine the allegation as part of an investigation into alleged Russian meddling in last year's election.
Senator Lindsey Graham, who is leading the Senate Judiciary Committee's investigation of allegations of Trump-Russia ties, has pressed the FBI to come forward with more details of its own probe into the issue.
Mr Graham said on Wednesday he would use a court order to force FBI Director James Comey to submit details on its Russian investigation and whether there was any evidence of Mr Trump's phones being wiretapped.
Mr Comey promised on Wednesday to provide answers in a classified briefing.
US intelligence agencies found that Russia conducted cyber-attacks against the Democratic Party as part of an effort to influence the election in Mr Trump's favour.
Russia has repeatedly denied any involvement.
Mr Trump has been dogged by claims that his advisers and staff had ties to Russian officials, but there has been no evidence of any collusion between his campaign and Moscow.

Answer: US President Donald Trump has stood by his unsubstantiated claim that Barack Obama wiretapped Trump Tower last year.


Question: The event is part of an art exhibition at the 20-21 Visual Arts Centre, which began on Saturday 18 February.
To find and keep the pieces, worth at least Â£1,000 each, people must study five paintings and solve the code within them.
One of the items was found by accident so a reward is being offered to anyone who can solve the clue linked to it.
Artist Luke Jerram said he would donate Â£500 to a charity of the finder's choice if they could solve the mystery of the "red picture".
The fourth item, the golden train, was found by a family from Grimsby in Scunthorpe's Central Park on Friday night.
Mr Jerram said he had not anticipated so many items would be discovered in the first week.
"I was expecting two or three, something like that. What I did not expect was the response of the public would be so astonishingly positive.
"I did not expect the public would go round looking in every nook and cranny of the town to try and find the artefacts."
The Visual Arts Centre said the public response had been extraordinary.
"It has created a real buzz around the place and brought in thousands of people," said the centre's visual arts officer Michelle Lally.
The final item to be found is the gold copy of a Jurassic ammonite, an ancient marine mollusc fossil.
The five objects are replicas of pieces at North Lincolnshire Museum and were made from gold worth Â£1,000, but could be worth much more.

Answer: Four of five gold artefacts hidden in Scunthorpe as part of a treasure hunt have been found inside a week.


Question: Domenico Rancadore, 65, was held in west London after a fresh European Arrest Warrant was received from Italy.
He had been allowed to stay in the UK after winning an extradition battle last month following a similar warrant.
He appeared in court where his lawyer described the arrest as an "abuse of process". Rancadore was refused bail.
The new European Arrest Warrant describes Rancadore, known as The Professor, as being "one of the heads of one of the most powerful Mafia organisations in Italy".
It adds he has an outstanding sentence of seven years to serve for "participation in Mafia association between 1987 and 1995".
In March, Rancadore won a fight against extradition to Italy, when a judge ruled prison conditions there would breach his human rights.
Later that month, he heard he would not face an appeal against that ruling because the Crown Prosecution Service had missed a deadline to lodge the appeal.
Rancadore was first arrested in August 2013 under a European Arrest Warrant for the same allegations.
For 20 years he had evaded the authorities who accused him of fleeing Italy where he faced trial over his alleged Cosa Nostra "man of honour" connections and was convicted in his absence.
Rancadore and his wife moved with their two children to Uxbridge in west London in 1994 and lived under the name of Skinner, the maiden name of Mrs Rancadore's British mother.
At a previous hearing, Rancadore said he came to the UK to give his children "a good life", and to bring his time in Italy to an end.
He said the trial in which he was a defendant in the mid-1980s - involving 460 defendants, one of whom was his father - was a "terrible experience".
Asked about changing his name to Marc Skinner, he said it was to end ties with Italy, adding: "This was the only way."
Rancadore said he did not even contact his mother or father back home, saying: "I wanted to end everything with Sicily."
He will appear at Westminster Magistrates' Court again next week for a second bail application.

Answer:
A convicted Mafia boss has been remanded in custody after being rearrested over his connections to the criminal network.


