President Trump has not acknowledged the hacks or the culprits named so far. He has always been reluctant to accuse Russia of hacking campaigns, and at one point claimed that Russia had stopped cyber attacks despite contradictory evidence and remarks. Russia has denied any involvement so far, but it generally maintains its innocence regardless of the evidence.
The public accusation of the secretary of state could still be significant. This could rally support against Russian hacking and prompt agencies and businesses to step up their security. While there is no guarantee that the current White House will use sanctions or retaliatory cyberattacks, there may not be as much pressure to do so when there is an obvious collective response to hacks.
Update 12/19 at 12:30 p.m. ET: Trump has minimized the hacks, claiming that “everything is well under control” and suggesting that maybe it was China instead. He presented no evidence to support his claims.