The vice president, long a skeptic of US military intervention, is the rare figure in the administration who can appeal to both the realist and hawkish wings of the GOP.

The first six months of President Trump's term have brought major changes to U.S. foreign policy, from gutting foreign aid to softening the approach toward Russia.

Missouri Gov. Mike Kehoe signed a bill Wednesday that prohibits foreign money from funding ballot issue campaigns, making it the ninth state to enact such legislation.