Using government resources to attack political opponents is completely inappropriate.
"DOJ inspector general found all four Carter Page FISA warrants were illegally obtained, Joe diGenova says"
"The Justice Department inspector general has determined all four Foreign Intelligence Surveillance Act warrants against onetime Trump campaign aide Carter Page were illegally obtained, attorney Joe diGenova said this week..."

https://www.washingtonexaminer.com/news/doj-inspector-general-found-all-four-carter-page-fisa-warrants-were-illegally-obtained-joe-digenova-says
Hoping the highest levels of the Obama admin go down for this. It should be treason. Strict, high level accountability is needed for the FISA system to prevent this from happening or the whole thing should be scrapped.