(CNN) The powerful political network helmed by Charles and David Koch is ruling out running advertisements intended to hurt Hillary Clinton, another sign of their insistence on avoiding the presidential race.
The Koch network has previously said they will not back Republican candidate Donald Trump, but on Saturday officials told reporters that they would not run negative Clinton spots, a position taken by some Republican groups that are uneasy with the controversial GOP standard-bearer. The group is laser-focused on maintaining and expanding the Senate majority -- in the midst of a $42 million television advertising campaign focused on a half-dozen states -- and would only use Clinton to bash Senate Democratic hopefuls.
Network officials outlined their plans here as 400 of their donors prepared to hear from a roster of Republican leaders. House Speaker Paul Ryan is among the politicians who scored invites to one of the nation's most sought-after political retreats at a lavish campus nestled in the Rocky Mountains.
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