It’s an email scam as old as the Nigerian prince asking for money: someone claiming they hacked your webcam and have recorded you in an act of self-pleasure. Unless you pay up, the video will be sent to friends and family. The whole thing’s a lie, of course, but a new type of malware has made this form of sextortion a reality.
If you’re a candidate for some election, sometime this kind of stupid thing is enough to make you lose credibility and lose an election.