European allies fear Trump could adopt a more hostile stance toward NATO if Republicans suffer losses in the Nov. 3 midterm elections. European officials warn that internal political failures could push Trump to a more aggressive foreign policy, increasing tensions within the alliance. One European defense official says a stable of lame-duck presidents is a more adventurous foreign policy, with attacking NATO in Trump's worldview.

European allies fear Trump could adopt a more hostile stance toward NATO if Republicans suffer losses in the Nov. 3 midterm elections. European officials warn that internal political failures could push Trump to a more aggressive foreign policy, increasing tensions within the alliance. One European defense official says a stable of lame-duck presidents is a more adventurous foreign policy, with attacking NATO in Trump's worldview.