Trump Tweeted that the White House complained about hacking only after Hillary lost:

"Here is the first sentence of Ellen Nakashima’s October 7 Washington Post report: “The Obama administration on Friday officially accused Russia of attempting to interfere in the 2016 elections, including by hacking the computers of the Democratic National Committee and other political organizations.” Trump was even presented with this information onstage at a presidential debate, where he dismissed it. What’s astonishing is that Trump is not only denying the substance of the accusation, he’s denying that the accusation was even made. Let this sink in: The president-elect of the United States is insisting that something that was witnessed on national television by more than 66 million people never happened."

http://nymag.com/daily/intelligencer/2016/12/trump-denies-thing-that-66-million-people-saw-happen.html