Tokyo stocks slipped Thursday morning as sentiment was dented by declines in some European markets on concerns about possible political turmoil linked to an upcoming parliamentary election in France. The 225-issue Nikkei Stock Average fell 246.66 points, or 0.64 percent, from Wednesday to 38,324.10. The broader Topix index was down 19.08 points, or 0.70 percent, at 2,709.56. The U.S. dollar strengthened to the lower 158 yen range in Tokyo on prospects that the interest rate differential between Japan and the Unites States will remain wide for a while. At noon, the dollar fetched 158.05-10 yen …