If there were political motivations for the investigation into Trump’s connections with Russia, the investigation would have been revealed prior to Nov. 8, 2016. Period. The investigation is for national security purposes, not political ones.
Even among the agents conducting the investigation themselves there was no anti-Trump, pro-Clinton political agenda. We know this because we have seen how easy it is for damning information to leak. If the goal was to elect Clinton, agents would have leaked to the media.