Was the false accusation of Republican collusion with Russia, launched soon after the presidential election defeat of the Democratic candidate in 2016, done in order to cover up ongoing FBI spying of the Trump campaign?

This indeed, is what happened and is, again, a kind of game being played out here. The Extraterrestrial Alliance does many things of this kind, simply because they can. Humans cannot be allowed to be totally free agents and exert their free will independently of the extraterrestrial plans, so they are always guiding things, directing things, influencing leaders in particular, to create predictable outcomes for masses of people by influencing them through propaganda, and through the imposition of the views of so-called experts and the political leadership, and so on. The manipulations are always a way to curtail things and to cause problems for humanity. So, this is done purposefully and actively, and is a part of life across the board. This whole media event, and that is truly what it is, is typical of mischief they create in many settings to confound and confuse, and to thwart human aims in places of business, in educational institutions, even in health care settings. They can throw a wrench in the works on a moment's notice, in almost anything people are involved with simply because they have the capability, and they know enough about how humans think and feel, to create opportunities to misdirect, and mislead, and misguide people into causing trouble for themselves and others. So, this was the case here. They were simply wanting to divide and conquer, yet again, by engaging in risky practices and then knowing if their manipulations caused the victims to be discovered in the act, it would only create more strife and backlash within human society, all of which serves the Extraterrestrial Alliance by slowing humanity down, and causing distractions and delays in human progress as a consequence of misdirected attention, and wasted motion and energy on various types of folly, rather than addressing serious problems with serious solutions and bringing people together to deal with them effectively.