Organized labor and gender pay equity are the issues 1st Congressional District candidates most want to talk about this week — just not to each other.

Democratic challenger Elizabeth Colbert Busch plans to highlight the discrepancy of earnings between South Carolina’s men and women during a College of Charleston campaign event Saturday.

Meanwhile, Gov. Mark Sanford’s campaign continues to point toward her support for unions — in particular her receiving a $5,000 donation from the International Association of Machinists and Aerospace Workers International — the union that challenged Boeing’s South Carolina expansion.

“My opponent won’t ... address her ties to this union that has been completely antithetical to job growth in South Carolina,” Sanford, a Republican, said in a statement.

As the two struggle to control the narrative before the May 7 special election, Colbert Busch has brushed off Sanford’s criticism by saying she supports Boeing and that unions are largely a state issue. Instead, she has been emphasizing that South Carolina women earn only 76 cents for every dollar a man earns.

“I am committed to making sure that women earn the same pay for the same work,” she said in a statement. “As I know firsthand, families wouldn’t be able to make ends meet without women earning a fair wage.”

Colbert will appear with her daughters, daughter in law and two granddaughters at 11 a.m. Saturday for a “Working for the Weekend” conversation at the College of Charleston’s Higdon Student Leadership Center.

Read more in tomorrow’s Post and Courier.