There is strong evidence that points to election-related hacking. This must be investigated by the current administration or the next one as if it continues unchecked, our election system could become compromised. Who's to say the election wasn't in fact rigged? Hillary Clinton clearly won the popular vote and was always ahead of Trump in the polls.
Specifically there should be an independant, bi-partisan committe formed to investigate the allegations of hacking. They should first determine if there is enough evidence to do a full investigation, and if their is do a full investigation. If there was hacking thean there should be consequences for it and it should not happen again.
If we can't trust a person to fairly win an election then how can we trust them as the leader of our country. If they lied to us during the election then how do we know they wouldn't lie to us during their presidency? So the Obama administration should definitely review these allegations.
Yes, the Obama administration should review allegations of election-related hacking. If a foreign government has been found to have hacked election-related communications for the purpose of swaying elections in the United States, they must be held to account. This would be the only way to discourage this behavior in the future.