Vivek Ramaswamy's presidential campaign has stopped spending money on television ads and does not have any TV ad reservations booked, according to his campaign and data from an ad-tracking firm. As recently as the first full week of December, the GOP entrepreneur's campaign spent more than $200,000 on TV ads. Last week, it spent just $6,000 on ads — all of it on TV — figures from the firm AdImpact show. "We are focused on bringing out the voters we've identified — best way to reach them is using addressable advertising, mail, text, live calls and doors to communicate with...