Did Obama really wiretap Trump Towers?

They were arguably Donald Trump's most striking claims to date: a series of tweets, accusing then-President Barack Obama of wire-tapping Trump Tower during the election.
​
The claim appeared to come as a surprise, and was not backed up by any evidence.

First Mr Obama's spokesman, then the former US intelligence chief James Clapper denied any wiretap had been ordered.

But President Trump, via his press secretary Sean Spicer, has urged Congress to investigate the "troubling" claims, alongside its current investigations into allegations of Russian hacking during the election.

What are the Congressional committees already looking at?Both the House and Senate intelligence committees are currently looking into the possibility of Russian interference during the 2016 election, inquiries launched in January.

They have promised wide-ranging investigations, carried out on a bipartisan basis, which will not shy away from looking into potential links between the Trump campaign and the Kremlin, as well as Russian "cyber activity".

Both committees have conceded these will be time-consuming investigations, and at least one member of the House intelligence committee has expressed his annoyance at another layer being added

"Ok @PressSec, as a member of the committee onto which you've dumped this mess, I look forward to seeing your evidence," Democrat Jim Himes tweeted.