Tulsa businessman Mike Mazzei narrowly won the Republican nomination for Oklahoma governor on Tuesday after getting a boost from President Donald Trump's social media attacks on Mazzei's rival, state Attorney General Gentner Drummond.

On Tuesday, Republican voters in South Carolina will vote to replace the late Sen. Lindsey Graham on November's ballot in a runoff between his sister Darline and Congressman Ralph Norman. As South Carolina ETV's Gavin Jackson reports, the closing days of this electoral sprint featured a major debate gaffe and a campaign rally with President Trump.