WASHINGTON (AP) – In the 2016 presidential campaign, money from campaign donors isn’t buying love from voters. But it’s buying more time for some candidates.

Less than a month before voting begins, the Republican field still has a dozen presidential hopefuls. Super PACs are one reason why.

Some candidates lean heavily on these outside groups. Nearly 96 percent of the money for Jeb Bush, John Kasich and Chris Christie commercials has come not from their official campaigns, but from their supportive super PACs. So says advertising tracker Kantar Media’s CMAG.

Without his super PAC, Bush might be gone from the race by now. And Kasich hasn’t spent a dime of campaign money on television. But the Ohio governor’s super PACS have showered New Hampshire with almost $10 million worth of commercials so far.