FILE - In this June 27, 2016, file photo, U.S. Rep. Tim Huelskamp, R-Kan., answers a question during a debate in Hutchinson, Kan., with his Republican primary challenger Dr. Roger Marshall, left, in Kansas' 1st Congressional District. (Travis Morisse/The Hutchinson News via AP, File)

Huelskamp’s combativeness biggest issue in Kansas race

The combativeness that’s made U.S. Rep. Tim Huelskamp a tea party favorite has turned agriculture and business groups against him and could …

FILE - In this photo May 22, 2012 file photo, Charles Koch speaks in his office at Koch Industries in Wichita, Kansas. Billionaire industrialist and conservative benefactor Koch is hosting hundreds of the nation's most powerful political donors this weekend in Colorado. The exclusive gathering at the foot of the Rocky Mountains is open to donors who promise to give at least $100,000 each year to Koch-approved groups. The Koch network has avoided supporting Donald Trump's presidential campaign so far. (Bo Rader/The Wichita Eagle via AP, File)

Koch donors gather for weekend retreat

Billionaire industrialist and conservative benefactor Charles Koch’s expansive political network will not help Donald Trump win the presiden…