Proof that Trump was being "spied on" by the Obama intelligence community:

Update:  Two things:  First,  Carter Page assisted in the Trump campaign back in the summer of 2016,  but never met Donald Trump.  The two men are strangers to the other.   Secondly,  FISA warrants are not issued for a particular person.  Rather,  such warrants are issued for a group of individuals.  Example:  the Feds, during the Obama Administration,  got a warrant for customers of Verison;  130 million people, with no mention of a single particular person.  If Carter Page was a subject of FISA, it was because he was included in a group of individuals.  (Source:  Judge Neapolitan, Fox News,  Thursday morning).

Ellen Nakashima / Washington Post:
FBI obtained FISA warrant to monitor Trump adviser Carter Page  —  The FBI and the Justice Department obtained the warrant targeting Carter Page’s communications after convincing a Foreign Intelligence Surveillance Court judge that there was probable cause to believe Page was acting as an agent of a foreign power, in this case Russia, according to the officials.
Notes:  If you say that this FISA warrant did not allow the surveillance of Donald Trump,  you are simply being deceitful.   Carter Page worked with the Trump campaign, briefly,  and had business dealings in Russia.  In fact,  he was "let go" by the campaign because he couldn't separate himself from his business dealings, abroad.  The warrant was issued in July of 2016,  and, because of Carter's ties to Trump,  the [now] President most definitely was included in this search.  
Is Trump a Russian stooge?  Maybe somebody on the Left should ask  Putin.  The Syrian raid,  Nikki Halley's rhetorical war with Russia at the U.N.,  and Putin's anger with the United States,  at this very moment,  are all proof that Trump is his own man   . . . . .   never mind the fact that the FBI has admitted that,  to date,  there is no evidence of a Trump/Russian partnership.