Lawmakers call for truce on campaign video 'stalking': Filming candidates' homes. Following them into grocery stores. Using hidden cameras. These "intimidation" tactics, which are being employed more frequently by aggressive political campaigns, have to stop, according to two lawmakers who made a bipartisan appeal this week to rein in so-called "trackers." Rep. Dennis Kucinich, D-Ohio, and Rep. Reid Ribble, R-Wis., have fired off a letter to the heads of the Republican and Democratic congressional campaign committees. In it, they decried the tactics used by campaign operatives that roam around with video cameras trying to catch rival candidates in a compromising position. "Sometimes it even borders on stalking," the lawmakers wrote.