The FBI instantiated investigations against several individuals in the Trump campaign in 2016-2017 due to suspected ties between them and the Russian government. [0] Of those investigated, all but one were convicted - not of collusion, but for lying to investigators and obstruction among other things.

However I think insinuating a lack of oversight or ulterior political motives is wrong. A counter-investigation by Trump's DoJ found that the initial motives for the investigation were solid, but did note a number of errors made in the process. In fact, one FBI lawyer who lied during the investigation has been charged. [1]

[0] https://en.wikipedia.org/wiki/Crossfire_Hurricane_(FBI_inves...

[1] https://www.cnn.com/2019/12/18/politics/horowitz-hearing-rus...

CNN is not a legitimate news source.

Your reductive opinion of CNN does not change the underlying facts that OP stated.

It kinda does, though. The "Trump's DOJ" investigation into these matters is not over. In fact it's barely entering its active phase, with declassifications etc. Charges won't be pressed until after election at this point, but there certainly will be charges. Yet if you only watch CNN, you could be misled into believing that the Obama FBI was beyond reproach and it's all over by now.

> and absolutely nobody was charged with anything, let alone convicted

Actually a lot has happened with this story since 2016, it looks like 34 different people and 3 companies were charged and either plead guilty or were convicted.

I am curious though, what is the news source that lead you to believe otherwise?

I think you misunderstood what I said. That spying was ordered based on fake "intelligence" fabricated by foreign actors (and then further distorted by deep state actors such as Strzok) and paid for by the Clinton campaign. My argument is that everyone involved in that should be in prison. Strzok, Page, and Brennan at a minimum.

The reason why you don't know about any of this is because it doesn't get covered in left-wing media: https://web.ground.news/article/b9a0e58b-3c08-4623-9b93-4786.... At all.