These type of games are pretty normal for politics of both parties. The difference is the extent the Clinton machine did it.
Sort of, but the GOP does it on a much more limited scale, and not so much in a way that tries to deliberately deceive as to the source.
I have a feeling they are up to some new tricks this election, trying to hide outside and even foreign deep pocket money more effectively to make it look like small donor money, yet not through the DNC, for starters.