Roboweekend.

(TPM Muckraker.com) - In at least 53 competitive House races, the National Republican Campaign Committee has launched hundreds of thousands of automated telephone calls, known as "robo calls."....

(Talking Points Memo) - What we're seeing is an apparent coordinated effort from the NRCC -- the House GOP committee -- to place calls that appear to be from the local Democratic candidate and then automatically call the same number back as many as seven or eight times each time the caller hang-ups. If the caller listens to the whole message it goes on to bash the Democratic candidate. But if the caller hangs up prematurely, the computer calls right back. Hang-ups are the achilles heal of robo-calls. So this seems to be an attempt to cover for that weakness by making those who hang up think the Democratic candidate is basically harassing them with phone calls. The GOP wins either way.