No fire, but lotsa smoke, including a federal settlement agreement and penalty for "routine" money laundering in AC:
http://www.motherjones.com/politics...ia-money-laundering-banks-oligarchs-manafort/
http://www.huffingtonpost.com/entry...f65e4b05c37bb7bbbdb?ncid=edlinkushpmg00000313
http://www.salon.com/2017/05/23/is-...crimes-may-be-the-presidents-biggest-problem/
http://www.cnn.com/2017/05/22/politics/trump-taj-mahal/index.html
Exactly, there always seems to be plenty of smoke for the allegations against President Trump, but any fire seems to be gratifyingly/frustratingly (depending on your point of view) difficult to find. Lots of allegations of sexual harassment were made and yet there are no successful convictions. Allegations are made about Donald Trump, or at the very least his campaign, conspiring with the Russians and yet concrete evidence seems to be absent, all we can do is to attempt to join the dots. All kinds of allegations are made about President Trump attempting to obstruct justice but when what he actually said is examined ("I hope you can....") , it proves to be frustratingly ambiguous.
In the U.S. you are innocent until proven guilty. The threshold for criminal guilt is AFAIK "beyond reasonable doubt". Looking at the GOP I think that they will require that level at the very least and probably somewhat beyond (if that's possible) before they will even consider starting impeachment much less actually find him guilty.
Of course it doesn't help that IMO they are running the investigation to ensure that nothing is found.