That's my tentative estimate (based on Google election result and population statistics) of the percentage of Americans who voted for nobody for President of the United States on Tuesday.
US President Barack Obama knocked down about 60.7 million votes.
GOP challenger Mitt Romney polled about 57.8 million.
Libertarian nominee Gary Johnson, 1.14 million.
Green candidate Jill Stein, about 400,000.
A few others, a few thousands or tens of thousands.
About 38.8% of the population supported one of the candidates; about 19.5% of the population supported the alleged "winner."
61.2% of the population did not consent to be ruled at all, and fewer than one in five Americans consented to be ruled by Barack Obama. The figures are likely similar for most or all of the 435 US Representatives and 33 US Senators "elected" on Tuesday.
If these politicians support the system of government they claim to support — one in which governments "deriv[e] their just powers from the consent of the governed" — then the only order of business they have to discuss is who will turn the lights off as they depart Washington.
Don't bet the ranch on it.
As voter turnout reduces, that consent is more apparently not given to politicians through the vote, and confidence in politicians and their government is fading. Getting the support of less than 20% of the population is a sign that the consent of the governed is being withdrawn en masse.
Vote no confidence by not voting.