Michael Flynn has a history of making untrue claims about facts.
The article also includes actions that violated government security rules more than Clinton did. (It may not really have been harmful in Flynn's case, or in Clinton's case. Rather, there was a risk in each case that it would be harmful.)
With Trump, the only standard is a double standard. Nothing is objectively right or wrong, for him, only an opportunity to praise someone (if that is his wish) or to condemn someone (if that is his wish).

Compared with 2012, Trump got more votes from nonwhites, apparently because he talked about the injustice of plutocratist politics while Clinton (more honestly) did not.
This brought him within range for Republicans to steal the rest of the way.
Trump was lying in saying he would help, of course.
Hedge Fund Managers Expect a Return on Their Investment in Donald Trump.

Some reasons why the electoral college should refuse to vote for Trump.

A small island in American Samoa has replaced 100,000 gallons per year of diesel fuel with solar power. With batteries, no more fuel needs to be burned.
American Samoa plans to end fossil fuel use by 2040. But I think that is not soon enough, if it is to be a leader for the rest of the world to get off fossil fuels fast enough.

Linking Trump to the Ku Klux Klan Risks Boosting a Rump Organisation.