Top Republican super PAC pledges $5 million for South Carolina Senate race

The top Republican super PAC involved in Senate races is planning to spend $5 million in South Carolina, a source familiar with the spending confirmed to NBC News on Tuesday. The injection of funds from the Senate Leadership Fund, a group aligned with Senate Majority Leader John Thune, R-S.D., is the latest sign that the race between GOP Sen. Darline Graham and Democratic pediatrician Annie Andrews is competitive. The outlay was first reported by Axios. It comes as the Senate map is shifting further in Democrats’ favor, putting Republican-leaning states increasingly in play with less than a month remaining until...