By Jonathan Allen and Rich McKay MARTHA’S VINEYARD, Mass. (Reuters) – Florida’s Republican governor on Friday defended his decision to fly dozens of migrants to the wealthy vacation island of Martha’s Vineyard from Texas, and said similar actions could follow as a political dispute over border security deepened in the run-up to U.S. elections in November. DeSantis claimed credit for a pair of chartered flights on Wednesday that carried around 50 migrants to Martha’s Vineyard, Massachusetts, as part of a broader Republican effort to shift responsibility for border crossers to Democratic leaders…