Do you believe that Trump was Spied On by Obama?

Trump said what?

Judge Andrew Napolitano was just "sidelined" from Fox News after explaining that the British government could have spied on then candidate Donald Trump.   However, it is known that since 1971, five allied nations spied on each other as part of "Project ECHELON."  While the program exists, we do not know if a specific request came from President Obama as President Trump alleges.  What do you think?