Chuck Todd said there is a precedent of people questioning the legitimacy of presidents on the Friday edition of his MSNBC show Meet the Press Daily
CHUCK TODD: In case you missed it, Congressman John Lewis (D-Ga.), civil rights hero and icon, said Donald Trump does not believe is a legitimate president because of the Russian meddling in the election. Leaving aside how you feel about Lewis' position, it's not first time a president's legitimacy has been questioned.
In 1824 when John Quincy Adams won the presidency over Andrew Jackson, despite getting clobbered in the popular vote, a lot of people questioned the legitimacy of his victory. In fact, this happens pretty much every time the popular vote loser moves into the White House.
After the 1876 election, Rutherford Hayes, who was called Ruther-fraud Hayes when Congress gave him the electoral majority.
The same in 1888 with Benjamin Harrison. You may remember the occasional cry of foul in 2000 when the Supreme Court stopped the Florida recount and George W. Bush won the election.
Sometimes, though, it has nothing to do with voting. When William Henry Harrison died a month after taking office in 1841, a lot of people didn't accept the idea that as vice president John Tyler or any vice president for that matter could legitimately ascend to the presidency. A lot of people just called him an 'acting president.'
Most recently, of course, the conservative right and and some Republicans claimed to doubt President Obama's citizenship and therefore the legitimacy of his right to serve in the office of the presidency.
None of this is meant to pass judgment on John Lewis' position, it's just to remind us all this isn't the first time someone has questioned the legitimacy of an American president. Surely won't be the last.
This is what our political system does, we have this back and forth. It doesn't make it any less shocking, frankly, to some of us when you do hear it from people with big influence. That's all for tonight.