Perhaps -- but it's ripe ground for some investigative reporting. To date, I don't get the impression that anyone has taken this accusation seriously; it would be interesting to see someone do so, and see what they find. There may be nothing there, but it's going to linger as a conspiracy theory until and unless it's explored.

And honestly -- Congress isn't going to take any action on this until and unless it's explored more from the outside. If someone finds actual evidence of tampering (rather than just speculation), *then* it's time to appoint an independent counsel to look into it; until then, Congress isn't going to produce anything other than wind. And frankly, if someone *does* find compelling evidence, an official investigation happen regardless of who's in charge of Congress -- it's too explosive to sit on, and a coverup will almost certainly cause more widespread damage than an investigation would.

So I don't really regard the political landscape in Congress to be the gating factor here...