TOPEKA, Kan. (AP) — Kansas' open Senate race has generated close to $14 million worth of ads, with two-thirds of the spending coming from political action committees as establishment Republicans fight to keep hard-right conservative Kris Kobach from winning the GOP nomination.

The Senate Leadership Fund, aligned with Senate Majority Leader Mitch McConnell, launched television and radio spots this week praising western Kansas Rep. Roger Marshall, the GOP establishment's pick in an 11-person field in the Aug. 4 primary. The American Bankers Association's PAC also began running a pro-Marshall tel...