They never thought she would lose. This (Russia! Russia! Russia!) was never supposed to be a real case, it was only supposed to be one more pretext for why Trump lost, to explain it away after Hillary's blue wave swept it under the rug. That's why they didn't bother to do a better job, and didn't cover their tracks. If HRC had won, none of it would've been investigated at all.
They never thought she would lose. This (Russia! Russia! Russia!) was never supposed to be a real case, it was only supposed to be one more pretext for why Trump lost, to explain it away after Hillary's blue wave swept it under the rug. That's why they didn't bother to do a better job, and didn't cover their tracks. If HRC had won, none of it would've been investigated at all.