Cause they ran for President...She, like gore and Kerry before her undermined our democratic norms and refused to accept the will of the people
They are a clear and president threat to our republic
Gore actually won...

Florida 'recounts' make Gore winner
Al Gore, not George Bush, should be sitting in the White House today as the newly elected president of the United States, two new independent probes of the disputed Florida election contest have confirmed.
But conceded for the sake of the country... The only party to steal an election were the GOP..
Kerry lost and conceded.
Hillary despite Trump getting help from Russia, cheating in the election with hush payment and having 2.9m more votes conceded...
HE is the full speech:

Read Hillary Clinton's Concession Speech for the 2016 Election
"This is painful and it will be for a long time."
If Trump had 2.7m more votes, do you think he would concede?