AXIOS (Alex Isenstadt) - Republicans skeptical Darline Graham can win a full Senate term
She has President Trump 's endorsement and is a sympathetic figure after the death of her brother, Sen. Lindsey Graham . As Graham's temporary replacement, she's a symbol of the political brand he built over more than two decades in the Senate. Driving the news: Even so, Darline Graham faces an uphill battle to win a full Senate term in November, Republicans in D.C. and her home state of South Carolina tell Axios. - South Carolina's rapidly approaching Aug. 11 primary has become a test of whether those advantages are enough to carry the late senator's sister — a political novice suddenly swept into the limelight — to a six-year term in Congress' upper chamber. - Skeptics throughout the GOP party are surprised Trump endorsed Darline…