Not correct.
When the Right-to-Work organization send Santorum a questionnaire, Santorum pledged to oppose compulsory union dues, support repeal of mandatory union representation for federal workers, oppose card check union elections, oppose project labor agreements requiring union wages even for non-unionized federal work, and took the Right-to-Work position on all five other issues in the questionnaire as well. What more does Gingrich expect from one who is attracting Reagan (union) Democrats and has the best chance of netting in critical rust-belt states into the red-states column come November.
Pandering Ricky may have filled out a questionnaire to be favorable toward the views of those pushing for right to work.
However, I heard him in various speech bites in Michigan and elsewhere talking about how he wants to see a return to the strong manufacturing and mining industries in MI and PA like it “used to be”. .....Those industries were all ruled by strong labor unions and their demands caused the demise of their employers.