(Michael R. Bloomberg, the billionaire former mayor of New York, is not competing in either Nevada or South Carolina, but his nationwide ad buys mean his ads are seen in both states.)
By the numbers
BIDEN $902,477 total, $430,751 over the last two weeks
BUTTIGIEG $1,024,155 total, $923,190 over the last two weeks
KLOBUCHAR $365,233, all over the last two weeks
SANDERS $1,811,125 total, $949,232 over the last two weeks
STEYER $13,845,560 total, $1,695,095 over the last two weeks
WARREN $1,060,284 total, $507,177 over the last two weeks
VOTEVETS $589,100, all over the last two weeks
DEMOCRATIC MAJORITY FOR ISRAEL $461,397, all over the last two weeks
A super PAC called Democratic Majority for Israel, which spent nearly $1 million on a negative ad attacking Mr. Sanders in Iowa, has made a $460,000 buy in Nevada. The group’s founder said last month that Mr. Sanders was in a “uniquely bad position” to win a general election.
And a super PAC supporting Mr. Buttigieg, VoteVets, just began a $590,000 ad campaign in Nevada.