TOPEKA (AP) — A northeast Kansas businessman running for the U.S. Senate as an independent candidate has launched a statewide radio and television ad campaign even before he’s secured his spot on the ballot.

Greg Orman, of Olathe, began radio, cable and broadcast television ads Thursday. His campaign also said he’s raised about $600,000 in cash contributions in less than two months for his Senate bid.

His campaign unveiled three television ads Thursday, one 60-second and two 30-second spots that emphasize Orman’s message that Washington has become too partisan.

Orman said in an interview that he’s launching the ads now because the Nov. 4 general election is less than four months away.

To get on the ballot, his supporters must gather the signatures of 5,000 registered voters on petitions by Aug. 4.