I find it sad to see people get so bound up in their conspiracy theories that they neither can nor will look at the truth, which is available for all to see. Remember this: when Trump won in 2016, the Republicans won both House and Senate. The American government was all theirs. And yet, Trump's own DOJ refuted the claims of Obama's spying, among lots of other such nonsense. HIS OWN DOJ!
en.wikipedia.org
As part of a large, baseless conspiracy theory, Donald Trump posited that Barack Obama had spied on him, which Trump described as "the biggest political crime in American history, by far." The series of accusations have been nicknamed Obamagate. Obama had served as President of the United States from 2009 until 2017, when Trump succeeded him; Trump served as president until 2021.
During key points of the 2020 campaign, including the Republican National Convention and both presidential debates, Trump frequently repeated this theory, claiming "they spied on my campaign" in reference to these allegations.
The specific allegations of inappropriate politically motivated surveillance or "spying" all involve the Federal Bureau of Investigation's Crossfire Hurricane investigation of the Trump campaign and transition and their ties to Russia.
No evidence has been found that legal surveillance, as part of Crossfire Hurricane, was at the direction of Obama, Obama administration political officials or improper deep state influence, or that the Steele dossier was used to launched the Russia probe, or that the surveillance was designed to surveil the Trump campaign and Trump White House transition team for political purposes.
Specific actions undertaken by the FBI that have been highlighted include the use of an informant who met with Trump advisors Sam Clovis, George Papadopoulos, and Carter Page, as well as obtaining a FISA warrant to legally surveil Carter Page after he left the Trump campaign.
The Inspector General report on the Crossfire Hurricane investigation did not find evidence that "political bias or improper motivation influenced the FBI's decision to seek FISA authority on Carter Page", but did point out serious inconsistencies and improper procedures that were followed with regard to the obtaining of the warrants.
Trump has claimed that as part of Crossfire Hurricane, his "wires" at Trump Tower were wiretapped. This was refuted by Trump's own Justice Department. In addition, Trump has claimed that after the Crossfire Hurricane investigation recorded Michael Flynn's conversations with Russian ambassador Sergey Kislyak, Flynn was improperly "unmasked". This was also refuted by the Trump Justice Department.