Sen. Bernie Sanders and former Sec. of State Hillary Clinton have aired roughly the same number of TV ads nationally since January 1. Clinton has benefitted from 38,811 TV ads in the period from January 1 to Feb. 14 and there have been 38,244 pro-Sanders ads during that same time period. All GOP candidates fall short of these totals in the past month and a half, with Jeb Bush still airing the most among his party’s primary field.